IPFM and Classic IPFM, Release 12.1.3

 
Updated August 23, 2023
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New and Changed Information

The following table provides an overview of the significant changes up to this current release. The table does not provide an exhaustive list of all changes or of the new features up to this release.

Release Version Feature Description

NDFC release 12.1.3

Reorganized content

Content within this document was originally provided in the Cisco NDFC-Fabric Controller Configuration Guide or the Cisco NDFC-SAN Controller Configuration Guide. Beginning with release 12.1.3, this content is now provided solely in this document and is no longer provided in those documents.

IPFM Fabrics

This section describes how to configure fabrics related to IP Fabric for Media (IPFM). The IPFM fabric feature is a part of LAN fabric. To enable the IPFM fabrics feature, you must have enabled the following features on the LAN Fabric in Settings > Feature Management:

  • IP Fabric for Media - Starts microservices corresponding to media controller.

  • PTP Monitoring - Enable if required. However, PTP monitoring is used for IPFM though it is independent of IPFM.

  • Performance Monitoring - Provides for base interface monitoring.

Beginning from Nexus Dashboard Fabric Controller version 12.0.1a, the IPFM fabric templates are of the following types:

  • Classic IPFM - Use the Classic IPFM fabric template to bring in switches from an existing IPFM fabric. This template works like an external or Classic LAN Fabric where only basic switch configuration such as management VRF/interface, and hostname can be imported. You can set the attribute of the fabric to Read/Write or Read-only. For the Read-only fabric, enable the monitor mode. This template supports Classic IPFM and Generic_Multicast technologies.

  • IPFM - Use the IPFM template to create a new IPFM fabric with Easy Fabric management and build an underlay network for the IPFM fabric.

note.svg

IPFM Easy Fabric supports only Greenfield deployments.

We recommend that you deploy a 3-node cluster if you’ve more than 35 switches in your NDFC deployment. If you are using a Virtual Nexus Dashboard Cluster before you begin, ensure that the Persistent IP address and required settings are enabled for telemetry. Refer to Cisco Nexus Dashboard Fabric Controller Deployment Guide.

For a fresh installation, you can choose either IPFM Easy Fabric or IPFM Classic Fabric, based on your requirement.

Creating IPFM Fabrics

Perform the following procedures to create IPFM fabrics:

  1. Create the required IPFM Fabric using the appropriate templates and set the parameters. For more information about Classic IPFM template, see Creating a Classic IPFM Fabric. For more information about IPFM template, see Creating an IPFM Fabric.

  2. Add switches to the fabric and set the switch roles (only spine and leaf are supported for IPFM Fabric). For more information about adding switches, discovering existing and new switches, assigning roles, and deploying switches, see Add Switches for LAN Operational Mode.

    note.svg

    • IPFM Easy Fabric supports only Greenfield deployments.

    • If you add a switch to an IPFM fabric that is configured in a non-monitor mode (Active NBM), the ongoing flows on that switch will be interrupted because NDFC deletes the existing switch DME configuration and then adds the intended DME configuration as part of the process of adding a switch. This is expected behavior.

  3. In the Fabric Overview window of your fabric, choose Recalculate Config from the Actions drop-down list. Then, in the Deploy Configuration window, click the Deploy button to deploy the configuration. For more information, see the section "Fabric Overview" in About Fabric Overview for LAN Operational Mode Setups.

    IPFM Easy Fabric: The underlay config of each switch is calculated based on the fabric settings, switch role, and switch platform.

    IPFM Classic Fabric: If you choose to have Nexus Dashboard Fabric Controller manage the interfaces for your fabric, perform host_port_resync/Interface Config Resync to complete the migration process for the switch. For more information about host port resync, see the section "Out-of-Band Switch Interface Configurations" in About Fabric Overview for LAN Operational Mode Setups.

    If you want to edit or delete an IPFM fabric, see Editing an IPFM Fabric or Deleting an IPFM Fabric respectively.

  4. Edit the existing interfaces as required. For more information, see Editing an Interface for IPFM Fabrics. For more information about any new logical interfaces, see Creating an Interface for IPFM Fabrics.

Creating a Classic IPFM Fabric

This section describes the procedure to create an IPFM classic fabric from the Classic IPFM template.

  1. In the LAN Fabrics window, from the Actions drop-down list, choose Create Fabric.

    The Create Fabric window appears.

    note.svg

    When you log in for the first time, the Lan Fabrics window displays no entries for IPFM fabrics. After you create a fabric, it is displayed in the Lan Fabrics window.

  2. In the Create Fabric window, enter a fabric name and click Choose Fabric.

    The Select Fabric Template window appears.

  3. Either search or scroll and choose the Classic IPFM fabric template. Click Select.

    The Create Fabric window displays the following elements:

    Fabric Name- Displays the fabric name you entered.

    Pick Template- Displays the template type that you selected. If you want to change the template, click it. The Select Fabric Template window appears. Repeat the current step.

    General Parameters, Advanced,and Bootstrap tabs - Display the fabric settings for creating an IPFM classic fabric.

  4. The General Parameters tab is displayed by default. The fields in this tab are:

    Fabric Technology - Choose one of the following technologies from the drop-down list:

    • Classic IPFM

    • Generic_Multicast

      Fabric Monitor Mode - Select this check box to only monitor the fabric, but not deploy the configuration.

      From Cisco NDFC Release 12.1.2e, you can configure and monitor both non-blocking multicast (NBM) active and passive VRFs. In NBM passive mode, NDFC will be involved only in the monitoring of IPFM fabric and not configuration except in setting up VRF mode as NBM passive.

      Enable NBM Passive Mode - Check this check box to enable NBM mode to IPFM passive for default VRF.

      note.svg

      You cannot edit the existing fabric to change the NBM mode. You must delete and re-create fabric to change the NBM mode from active to passive or vice-versa.

      Enable Performance Monitoring - Select this check box to monitor the performance of the fabric.

    Ensure that you do not clear interface counters from the Command Line Interface of the switches. Clearing interface counters can cause the Performance Monitor to display incorrect data for traffic utilization. If you must clear the counters and the switch has both clear counters and clear counters snmp commands (not all switches have the clear counters snmp command), ensure that you run both the main and the SNMP commands simultaneously. For example, you must run the clear counters interface ethernet slot/port command followed by the clear counters interface ethernet slot/port snmp command. This can lead to a one time spike.

  5. Click the Advanced tab. The fields in this tab are:

    Power Supply Mode - Choose the appropriate power supply mode.

    Enable AAA IP Authorization- Enables AAA IP authorization, when IP Authorization is enabled in the AAA Server.

    Enable NDFC as Trap Host - Select this check box to enable Nexus Dashboard Fabric Controller as a trap host.

    Enable CDP for Bootstrapped Switch - Enables CDP on management interface.

    Inband Mgmt - For External and Classic LAN Fabrics, this knob enables Nexus Dashboard Fabric Controller to import and manage of switches with inband connectivity (reachable over switch loopback, routed, or SVI interfaces), in addition to management of switches with out-of-band connectivity (that is, reachable over switch mgmt0 interface).

    The only requirement is that for Inband managed switches, there should be IP reachability from Nexus Dashboard Fabric Controller to the switches through the Nexus Dashboard data interface. After enabling Inband management, during discovery, provide the IPs of all the switches to be imported using Inband Management and set maximum hops to 0.

    Nexus Dashboard Fabric Controller has a pre-check that validates that the Inband managed switch IPs are reachable over the Nexus Dashboard data interface. Once the pre-check has passed, Nexus Dashboard Fabric Controller then discovers and learns about the interface on that switch that has the specified discovery IP in addition to the VRF that the interface belongs to.

    As part of the process of switch import/discovery, this information is captured in the baseline intent that is populated on the Nexus Dashboard Fabric Controller. For more information, see the section "Inband Management in External Fabrics and LAN Classic Fabrics" in Configuring Inband Management, Inband POAP Management, and Secure POAP.

    note.svg

    Bootstrap or POAP is only supported for switches that are reachable over out-of-band connectivity, that is, over switch mgmt0. The various POAP services on the Nexus Dashboard Fabric Controller are typically bound to the eth1 or out-of-band interface. In scenarios, where the Nexus Dashboard Fabric Controller eth0/eth1 interfaces reside in the same IP subnet, the POAP services are bound to both interfaces.

    Fabric Freeform - You can apply configurations globally across all the devices discovered in the external fabric using this freeform field.

    AAA Freeform Config - Specifies the AAA freeform configurations.

  6. Click the Bootstrap tab. The fields in this tab are:

    Enable Bootstrap (For NX-OS Switches Only) - Select this check box to enable the bootstrap feature for only Cisco Nexus switches. When this check box is selected, automatic IP assignment for POAP is enabled.

    After you enable bootstrap, you can enable the DHCP server for automatic IP address assignment for POAP using the following method:

    • External DHCP Server - Enter information about the external DHCP server in the Switch Mgmt Default Gateway and *Switch Mgmt IP Subnet Prefix*fields.

    • Local DHCP Server - Enable the Local DHCP Server check box and enter details for the remaining mandatory fields.

      Enable Local DHCP Server - Select this check box to initiate enabling of automatic IP address assignment through the local DHCP server. When you select this check box, all the remaining fields become editable.

      DHCP Version - Select either DHCPv4 or DHCPv6 from the drop-down list. When you select DHCPv4, the Switch Mgmt IPv6 Subnet Prefix field is disabled. If you select DHCPv6, the Switch Mgmt IP Subnet Prefix is disabled.

      note.svg

      Cisco Nexus Dashboard Fabric Controller IPv6 POAP is not supported with Cisco Nexus 7000 Series Switches. Cisco Nexus 9000 and 3000 Series Switches support IPv6 POAP only when switches are either L2 adjacent (eth1 or out-of-band subnet must be a /64) or they are L3 adjacent residing in some IPv6 /64 subnet. Subnet prefixes except /64 are not supported.

      If you don’t select this check box, Nexus Dashboard Fabric Controller uses the remote or external DHCP server for automatic IP address assignment.

      DHCP Scope Start Address and DHCP Scope End Address- Specifies the first and the last IP addresses of the IP address range to be used for the switch out of band POAP.

      Switch Mgmt Default Gateway- Specifies the default gateway for the management VRF on the switch.

      Switch Mgmt IP Subnet Prefix - Specifies the prefix for the Mgmt0 interface on the switch. The prefix should be between 8 and 30.

      DHCP scope and management default gateway IP address specification - If you specify the management default gateway IP address 10.0.1.1 and subnet mask 24, ensure that the DHCP scope is within the specified subnet, between 10.0.1.2 and 10.0.1.254.

      Switch Mgmt IPv6 Subnet Prefix- Specifies the IPv6 prefix for the Mgmt0 interface on the switch. The prefix should be between 64 and 126. This field is editable if you enable IPv6 for DHCP.

      Bootstrap Freeform Config- (Optional) Enter extra commands as needed. For example, if you are using AAA or remote authentication related configurations, you need to add these configurations in this field to save the intent. After the devices boot up, they contain the intent defined in the Bootstrap Freeform Config field.

      Copy-paste the running-config to a freeform config field with correct indentation, as seen in the running configuration on the NX-OS switches. The freeform config must match the running-config. For more information about Resolving Freeform Config Errors in Switches, see Enabling Freeform Configurations on Fabric Switches.

      DHCPv4/DHCPv6 Multi Subnet Scope- Specifies the field to enter one subnet scope per line. This field is editable after you select the *Enable Local DHCP Server*check box.

      The format of the scope should be defined as:

      DHCP Scope Start Address, DHCP Scope End Address, Switch Management Default Gateway,Switch Management Subnet Prefix

    For example, 10.6.0.2,10.6.0.9,10.6.0.1,24.

  7. Click Save.

The IPFM classic fabric is created and displayed in the table in the Lan Fabrics window.

What to do next:

After creating the fabric, perform Recalculate Config and deploy the configuration to the switches. For more information, see the section "Fabric Overview" in About Fabric Overview for LAN Operational Mode Setups.

Then, edit or create an interface as appropriate. For more information, see Interface Configuration for IPFM Fabrics.

Creating an IPFM Fabric

This section describes the procedure to create an IPFM Easy Fabric from the IPFM fabric template.

  1. In the LAN Fabrics window, from the Actions drop-down list, choose Create Fabric.

    The Create Fabric window appears.

    note.svg

    When you log in for the first time, the Lan Fabrics table has no entries. After you create a fabric, it is displayed in the Lan Fabrics window.

  2. In the Create Fabric window, enter a fabric name and click Choose Fabric.

    The Select Fabric Template window appears.

  3. Either search or scroll and choose the IPFM template. Click Select.

    The Create Fabric window displays the following elements:

    • Fabric Name- Displays the fabric name you entered.

    • Pick Template- Displays the template type that you selected. If you want to change the template, click it. The Select Fabric Template screen appears. Repeat the current step.

      General Parameters, Multicast, Protocols, Advanced, Manageability, and Bootstrap tabs display the fabric settings for creating an IPFM easy fabric.

  4. The General Parameters tab is displayed by default. The fields in this tab are:

    • Fabric Interface Numbering - Supports only numbered (point-to-point, that is, p2p) networks.

    • Fabric Subnet IP Mask - Specifies the subnet mask for the fabric interface IP addresses.

    • Fabric Routing Protocol- The IGP used in the fabric, OSPF, or IS-IS.

    • Fabric Routing Loopback Id: The loopback interface ID is populated as 0 since loopback0 is usually used for fabric underlay IGP peering purposes. The valid value ranges from 0 to 1023.

    • Manual Fabric IP Address Allocation- Select this check box to disable dynamic allocation of fabric IP address.

      By default, Nexus Dashboard Fabric Controller allocates the underlay IP address resources (for loopbacks, fabric interfaces, and so on) dynamically from the defined pools. If you select the check box, the allocation scheme switches to static, and some of the dynamic IP address range fields are disabled.

      For static allocation, the underlay IP address resources must be populated into the Resource Manager (RM) using REST APIs.

      Refer to the Cisco REST API Reference Guide, Release 12.0.1a for more details. The REST APIs must be invoked after the switches are added to the fabric, and before you use the Save & Deploy option.

      Changing from static to dynamic allocation keeps the current IP resource usage intact. Only future IP address allocation requests are taken from dynamic pools.

    • Fabric Routing Loopback IP Range- Specifies the range of loopback IP addresses for the protocol peering.

    • Fabric Subnet IP Range- IP addresses for underlay P2P routing traffic between interfaces.

    • Enable Performance Monitoring - Select this check box to monitor the performance of the fabric.

    Ensure that you do not clear interface counters from the Command Line Interface of the switches. Clearing interface counters can cause the Performance Monitor to display incorrect data for traffic utilization. If you must clear the counters and the switch has both clear counters and clear counters snmp commands (not all switches have the clear counters snmp command), ensure that you run both the main and the SNMP commands simultaneously. For example, you must run the clear counters interface ethernet slot/port command followed by the clear counters interface ethernet slot/port snmp command. This can lead to a one time spike.

  5. Click the Multicast tab. The fields in this tab are:

    From Cisco NDFC Release 12.1.2e, you can configure and monitor both NBM active and passive VRFs. In NBM passive mode, NDFC will be involved only in the monitoring of IPFM fabric and not configuration except in setting up VRF mode as NBM passive.

    note.svg

    You cannot deploy VRF on switch in ROM.

    • Enable NBM Passive Mode - Select this check box to enable NBM mode to pim-passive. If you enable NBM passive mode, the switch ignores all RP and MSDP configurations. This is a mandatory check box. If you select this check box, the remaining fields and check boxes are disabled. For more information, refer to the Configuring an NBM VRF for Static Flow Provisioning section of the_Cisco Nexus 9000 Series NX-OS IP Fabric for Media Solution Guide, Release 10.2(x).

      You must add the IP PIM Passive command when you add VRF which is in passive mode to the interface. Perform the below steps to add the IP PIM Passive command:

      1. On the Fabric Overview window, choose Links > Links.

      2. Select the appropriate fabric with the policy int_ipfm_intra_fabric_num_link and choose Actions > Edit.

        The Link Management - Edit Link window appears.

      3. On the General Parameters tab, enter default or default VRF for the Interface VRF name.

      4. Click the Advanced tab, enter IP PIM Passive on the Source Interface Freeform Config and Destination Interface Freeform Config fields.

      5. Click Save.

        You cannot edit the existing fabric to change the NBM mode. You must delete and re-create fabric to change the NBM mode from active to passive or vice-versa.

        Enable ASM - Select this check box to enable groups with receivers sending (*,G) joins.

        If you select this check box, the ASM-related section is enabled.

      NBM Flow ASM Groups for default VRF (w/wo SPT-Threshold Infinity) - This section comprises ASM-related information.

    • Click the expander arrow next to the title of this section to collapse or expand the section.

      • Use the Actions drop-down list to add, edit, or delete the ASM groups in the table.

      • Add - Choose this option to open the Add Item window. In the Add Item window, perform the following steps:

        1. Enter the appropriate values in the fields and check or clear the check box as follows:

          • Group_Address- Specify the IP address for the NBM flow ASM group subnet.

          • Prefix - Specify the subnet mask length for the ASM group subnet. The valid value for the subnet mask length ranges from 4 to 32. For example, 239.1.1.0/25 is the group address with the prefix.

          • Enable_SPT_Threshold- Check this check box to enable SPT threshold infinity.

        2. Click Save to add the configured NBM flow ASM groups to the table or click Cancel to discard the values.

      • Edit - Select the check box next to the group address and then choose this option to open the Edit Item window. Open the edit item and edit the ASM group parameters. Click Save to update the values in the table or click Cancel to discard the values.

      • Delete - Select the check box next to the group address and then choose this option to delete the ASM group from the table.

    • The table displays the values for group address, prefix, and enable SPT threshold.

    RP Loopback Id - The loopback ID used for the rendezvous point (RP), for multicast protocol peering purposes in the fabric underlay. The valid values range from 0 to 1023. Fabric RP Loopback IP Range- Specifies the RP Loopback IP address range.

  6. Click the Protocols tab.

    The fields in this tab are:

    Fabric Routing Protocol Tag - Specifies the routing process tag for the fabric.

    OSPF Area Id - The OSPF area ID, if OSPF is used as the IGP within the fabric.

    note.svg

    The OSPF or IS-IS authentication fields are enabled based on your selection in the Fabric Routing Protocol field in the *General Parameters*tab.

    Enable OSPF Authentication - Select the check box to enable OSPF authentication. Clear the check box to disable it. If you enable this field, the OSPF Authentication Key ID and OSPF Authentication Key fields get enabled.

    OSPF Authentication Key ID - The key ID is populated.

    OSPF Authentication Key - The OSPF authentication key must be the 3DES key from the switch.

    note.svg

    Plain text passwords are not supported. Log in to the switch, retrieve the encrypted key and enter it in this field.

    Refer the Retrieving the Authentication Key section for details.

    IS-IS Level - Select the IS-IS level from this drop-down list.

    Enable IS-IS Network Point-to-Point - Select the check box to enable network point-to-point on fabric interfaces which are numbered.

    Enable IS-IS Authentication - Select the check box to enable IS-IS authentication. Clear the check box to disable it. If you enable this field, the IS-IS authentication fields are enabled.

    IS-IS Authentication Keychain Name - Enter the Keychain name, for example, CiscoisisAuth.

    IS-IS Authentication Key ID - The Key ID is populated.

    IS-IS Authentication Key - Enter the Cisco Type 7 encrypted key.

    note.svg

    Plain text passwords are not supported.

    Log in to the switch, retrieve the encrypted key and enter it in this field.

    Refer the Retrieving the Authentication Key section for details.

    Enable PIM Hello Authentication - Enables the PIM hello authentication.

    PIM Hello Authentication Key - Specifies the PIM hello authentication key.

  7. Click the Advanced tab.

    The fields in this tab are:

    Intra Fabric Interface MTU - Specifies the MTU for the intra fabric interface. This value must be an even number. The valid values range from 576 to 9216. This is a mandatory field.

    Layer 2 Host Interface MTU - Specifies the MTU for the layer 2 host interface. This value must be an even number. The valid values range from 1500 to 9216.

    Power Supply Mode - Choose the appropriate power supply mode that will be the default mode for the fabric from the drop-down list. This is a mandatory field.

    Enable CDP for Bootstrapped Switch- Select this check box to enable CDP on management (mgmt0) interface for bootstrapped switch. By default, for bootstrapped switches, CDP is disabled on the mgmt0 interface.

    Enable AAA IP Authorization- Enables AAA IP authorization, when IP Authorization is enabled in the remote authentication server. This is required to support Nexus Dashboard Fabric Controller in scenarios where customers have strict control of which IP addresses can have access to the switches.

    Enable NDFC as Trap Host- Select this check box to enable Nexus Dashboard Fabric Controller as an SNMP trap destination. Typically, for a native HA Nexus Dashboard Fabric Controller deployment, the eth1 VIP IP address will be configured as SNMP trap destination on the switches. By default, this check box is enabled.

    Enable Precision Time Protocol (PTP) - Enables PTP across a fabric. When you select this check box, PTP is enabled globally and on intra-fabric interfaces. Additionally, the PTP Source Loopback Id and PTP Domain Id fields are editable. For more information, see PTP Configuration for IPFM Fabrics.

    PTP Source Loopback Id - Specifies the loopback interface ID Loopback that is used as the Source IP Address for all PTP packets. The valid values range from 0 to 1023. The PTP loopback ID cannot be the same as RP loopback ID. Otherwise, an error appears. The PTP loopback ID can be the same as BGP loopback or user-defined loopback which is created from Nexus Dashboard Fabric Controller. The PTP loopback will be created automatically if it is not created.

    PTP Domain Id - Specifies the PTP domain ID on a single network. The valid values range from 0 to 127.

    PTP Profile - Select a PTP profile from the list. PTP profile is enabled only on ISL links. The supported PTP Profiles are IEEE-1588v2, SMPTE-2059-2, and AES67-2015.

    Leaf Freeform Config - Add CLIs that should be added to switches that have the Leaf, Border, and Border Gateway roles.

    Spine Freeform Config - Add CLIs that should be added to switches with a Spine, Border Spine, Border Gateway Spine, and Super Spine roles.

    Intra-fabric Links Additional Config - Add CLIs that should be added to the intra-fabric links.

  8. Click the Manageability tab.

    The fields in this tab are:

    DNS Server IPs- Specifies the comma separated list of IP addresses (v4/v6) of the DNS servers.

    DNS Server VRFs- Specifies one VRF for all DNS servers or a comma separated list of VRFs, one per DNS server.

    NTP Server IPs- Specifies comma separated list of IP addresses (v4/v6) of the NTP server.

    NTP Server VRFs- Specifies one VRF for all NTP servers or a comma separated list of VRFs, one per NTP server.

    Syslog Server IPs- Specifies the comma separated list of IP addresses (v4/v6) IP address of the syslog servers, if used.

    Syslog Server Severity- Specifies the comma separated list of syslog severity values, one per syslog server. The minimum value is 0 and the maximum value is 7. To specify a higher severity, enter a higher number.

    Syslog Server VRFs- Specifies one VRF for all syslog servers or a comma separated list of VRFs, one per syslog server.

    AAA Freeform Config - Specifies the AAA freeform Configurations.

    If AAA configurations are specified in the fabric settings, switch_freeform PTI with source as UNDERLAY_AAA and description as AAAConfigurations will be created.

  9. Click the Bootstrap tab.

    The fields in this tab are:

    Enable Bootstrap- Select this check box to enable the bootstrap feature. Bootstrap allows easy day-0 import and bring-up of new devices into an existing fabric. Bootstrap leverages the NX- OS POAP functionality.

    After you enable bootstrap, you can enable the DHCP server for automatic IP address assignment for POAP using one of the following methods:

    • External DHCP Server - Enter information about the external DHCP server in the Switch Mgmt Default Gateway and Switch Mgmt IP Subnet Prefix fields.

    • Local DHCP Server - Enable the Local DHCP Server check box and enter details for the remaining mandatory fields.

      Enable Local DHCP Server - Select this check box to initiate enabling of automatic IP address assignment through the local DHCP server. When you select this check box, the DHCP Scope Start Address and DHCP Scope End Address fields become editable.

      If you do not select this check box, Nexus Dashboard Fabric Controller uses the remote or external DHCP server for automatic IP address assignment.

      DHCP Version- Select DHCPv4 or DHCPv6 from this drop-down list. When you select DHCPv4, the Switch Mgmt IPv6 Subnet Prefix field is disabled. If you select DHCPv6, the Switch Mgmt IP Subnet Prefix field is disabled.

      note.svg

      Cisco Nexus 9000 and 3000 Series Switches support IPv6 POAP only when switches are either L2 adjacent (eth1 or out-of-band subnet must be a /64) or they are L3 adjacent residing in some IPv6 /64 subnet. Subnet prefixes except /64 are not supported.

      DHCP Scope Start Address- Specifies the first IP address in the IP address range to be used for the switch out-of-band POAP.

      DHCP Scope End Address- Specifies the last IP address in the IP address range to be used for the switch out-of-band POAP.

      Switch Mgmt Default Gateway - Specifies the default gateway for the management VRF on the switch.

      Switch Mgmt IP Subnet Prefix - Specifies the prefix for the Mgmt0 interface on the switch. The prefix should be between 8 and 30.

      DHCP scope and management default gateway IP address specification- If you specify the management default gateway IP address 10.0.1.1 and subnet mask 24, ensure that the DHCP scope is within the specified subnet, between 10.0.1.2 and 10.0.1.254.

      Switch Mgmt IPv6 Subnet Prefix- Specifies the IPv6 prefix for the Mgmt0 interface on the switch. The prefix should be between 64 and 126. This field is editable if you enable IPv6 for DHCP.

      Enable AAA Config- Select this check box to include AAA configurations from the Manageability tab as part of the device startup config post bootstrap.

      Bootstrap Freeform Config- (Optional) Enter additional commands as needed. For example, if you require some additional configurations to be pushed to the device and be available post device bootstrap, they can be captured in this field, to save the desired intent. After the devices boot up, they will contain the configuration defined in the Bootstrap Freeform Config field.

      Copy-paste the running-config to a freeform config field with correct indentation, as seen in the running configuration on the NX-OS switches. The freeform config must match the running-config. For more information about Resolving Freeform Config Errors in Switches, see Enabling Freeform Configurations on Fabric Switches.

      DHCPv4/DHCPv6 Multi Subnet Scope- Specifies the field to enter one subnet scope per line. This field is editable after you check the Enable Local DHCP Server check box.

      The format of the scope should be defined as:

      DHCP Scope Start Address, DHCP Scope End Address, Switch Management Default Gateway,Switch Management Subnet Prefix

    For example, 10.6.0.2,10.6.0.9,10.6.0.1,24

  10. Click Save.

The Easy Fabric IPFM is created and displayed in the table in the Lan Fabrics window.

What to do next:

After creating the fabric, perform Recalculate Config and deploy the configuration to the switches. For more information, see the section "Fabric Overview" in About Fabric Overview for LAN Operational Mode Setups.

Then, edit or create an interface as appropriate. For more information, see Interface Configuration for IPFM Fabrics.

Retrieving the Authentication Key

Retrieving the 3DES Encrypted OSPF Authentication Key

  1. SSH into the switch.

  2. On an unused switch interface, enable the following:

    config terminal
    feature ospf
    interface Ethernet1/1
       no switchport
       ip ospf message-digest-key 127 md5 ospfAuth

    In the example, ospfAuth is the unencrypted password.

    note.svg

    This Step 2 is needed when you want to configure a new key.

  3. Enter the show run interface Ethernet1/1 command to retrieve the password.

    Switch # show run interface Ethernet1/1
   interface Ethernet1/1
     no switchport
     ip ospf message-digest key 127 md5 3 sd8478f4fsw4f4w34sd8478fsdfw
     no shutdown

    The sequence of characters after md5 3 is the encrypted password.

  4. Update the encrypted password into the OSPF Authentication Key field.

Retrieving the Encrypted IS-IS Authentication Key

To get the key, you must have access to the switch.

  1. SSH into the switch.

  2. Create a temporary keychain.

    config terminal
   key chain isis
   key 127
   key-string isisAuth

    In the example, isisAuth is the plaintext password. This will get converted to a Cisco type 7 password after the CLI is accepted.

  3. Enter the show run | section "key chain" command to retrieve the password.

    key chain isis
   key 127
       key-string 7 071b245f5a

    The sequence of characters after key-string 7 is the encrypted password. Save it.

  4. Update the encrypted password into the ISIS Authentication Key field.

  5. Remove any unwanted configuration made in Step 2.

Retrieving the 3DES Encrypted BGP Authentication Key

  1. SSH into the switch and enable BGP configuration for a non-existent neighbor.

    note.svg

    Non-existent neighbor configuration is a temporary BGP neighbor configuration for retrieving the password.

    router bgp
   neighbor 10.2.0.2 remote-as 65000
   password bgpAuth

    In the example, bgpAuth is the unencrypted password.

  2. Enter the show run bgp command to retrieve the password. A sample output:

    neighbor 10.2.0.2
   remote-as 65000
   password 3 sd8478fswerdfw3434fsw4f4w34sdsd8478fswerdfw3434fsw4f4w3

    The sequence of characters after password 3 is the encrypted password.

  3. Update the encrypted password into the BGP Authentication Key field.

  4. Remove the BGP neighbor configuration.

Retrieving the Encrypted BFD Authentication Key

  1. SSH into the switch.

  2. On an unused switch interface, enable the following:

    switch# config terminal
switch(config)# int e1/1
switch(config-if)# bfd authentication keyed-SHA1 key-id 100 key cisco123

    In the example, cisco123 is the unencrypted password and the key ID is 100.

    note.svg

    This Step 2 is needed when you want to configure a new key.

  3. Enter the show running-config interface command to retrieve the key.

    switch# show running-config interface Ethernet1/1

interface Ethernet1/1
description connected-to- switch-Ethernet1/1
no switchport
mtu 9216
bfd authentication Keyed-SHA1 key-id 100 hex-key 636973636F313233
no ip redirects
ip address 10.4.0.6/30
no ipv6 redirects
ip ospf network point-to-point
ip router ospf 100 area 0.0.0.0
no shutdown

    The BFD key ID is 100 and the encrypted key is 636973636F313233.

  4. Update the key ID and key in the BFD Authentication Key ID and BFD Authentication Key fields.

Editing an IPFM Fabric

In the LAN Fabrics window, select the fabric that you want to edit. From the Actions drop-down list, choose Edit Fabric. Edit the fields in the template as required. Click Save.

note.svg

After the fabric settings are changed, perform Recalculate Config, and deploy the configuration to the switches.

Deleting an IPFM Fabric

In the LAN Fabrics window, select the fabric that you want to delete. From the Actions drop-down list, choose Delete Fabric. When a message appears asking whether you want to delete the fabric, click Confirm.

Interface Configuration for IPFM Fabrics

Cisco Nexus Dashboard Fabric Controller Web UI allows you to configure IPFM External-Links for each switch in your fabric. The external device can connect to the network through this interface by marking it as IPFM External-Link.

note.svg

A user with the network operator role in Nexus Dashboard Fabric Controller cannot save, deploy, undeploy, or edit interface configs.

Beginning with NDFC Release 12.0.1a, Interfaces in IPFM fabrics are managed by the Nexus Dashboard Fabric Controller Interface Manager. The default interface policy for IPFM is int_ipfm_l3_port.

The following issues are seen when NBM VRF is deleted from NDFC after interface is enabled with NBM external-link and unicast BW setting. When this occurs, the affected interfaces continues to show external-link and ucast BW as set. Perform the following steps to cleanup:

  1. Select all the switches that has these interface issues under Policies tab using Add Policy.

  2. Choose host_port_resync template and click Save.

  3. Select Recalculate & Deploy. This syncs switch configuration with NDFC.

  4. Select Resync All.

The non-fabric ethernet interface policy templates for IPFM fabrics are int_ipfm_l3_port, int_ipfm_access_host, and int_ipfm_trunk_host.

The port channel interface policy templates for IPFM fabrics are int_ipfm_port_channel_access_host,int_ipfm_port_channel_trunk_host, int_ipfm_port_channel_access_member,and int_ipfm_port_channel_trunk_member.

The Switch Virtual Interface (SVI) template for IPFM fabrics is int_ipfm_vlan.

Creating an Interface for IPFM Fabrics

This section describes the procedure to create a new interface for an IPFM fabric based on the template that you have selected from the available IPFM fabric interface templates.

note.svg

IPFM fabrics do not support V6 underlay.

  1. Navigate to the Fabric Overview window for your fabric and click the Interfaces tab.

  2. Choose Create new interface from the Actions drop-down list.

    The Create new interface window appears.

  3. Select either Port Channel, Loopback, or SVI as the interface type for IPFM.

  4. Select a device from the drop-down list. The switches (spine and leaf) that are a part of the fabric are displayed in the drop-down list.

  5. Enter the Port Channel ID, Loopback ID, or VLAN ID, based on your choice of the interface type.

  6. Click the No Policy Selected link to select a policy that is specific to IPFM. In the Select Attached Policy Template dialog box, choose the required interface policy template and click Save.

  7. Enter the appropriate values in the Policy Options area. Note that the appropriate Policy Options fields are displayed based on the policy.

    • Type - Port Channel

      Port Channel Member Interfaces- Specify a list of member interfaces, for example, e1/5,eth1/7-9.

      Port Channel Mode- Select one of the following channel mode options: on, active, or passive.

      Enable BPDU Guard- Select one of the following options for spanning-tree Bridge Protocol Data Unit (BPDU) guard:

      • true - enables bdpuguard

      • false - disables bpduguard

      • no - returns to default settings

    Enable Port Type Fast- Select this check box to enable spanning-tree edge port behavior.

MTU- Specify the maximum transmission unit (MTU) for the Port Channel or the MTU for the interface. The valid value range for MTU for the interface is from 576 to 9216.

SPEED - Specify the port channel speed or the interface speed.

Access Vlan- Specify the VLAN for the access port.

Trunk Allowed Vlans- Enter one of the following values:

  • none

  • all

  • vlan ranges, for example, 1-200, 500-2000, 3000)

    Enable PTP- Select this check box to enable Precision Time Protocol (PTP) for the host interface for the IPFM fabric. For more information about PTP, see PTP Configuration for IPFM Fabrics.

PTP Profile- Select a PTP profile from the drop-down list: IEEE-1588v2, SMPTE-2059-2, or AES67-2015.

PTP Vlan- Specifies the PTP vlan for member interface when PTP is enabled.

Port Channel Description- Enter description for the port channel.

Freeform Config- Enter additional CLI for the port channel if required.

Enable Port Channel- Select this check box to enable the port channel.

  • Type - Loopback

Interface VRF- Enter the name of the interface VRF. Enter default for default VRF.

Loopback IP- Enter an IPv4 address for the loopback interface.

Loopback IPv6 address- Enter an IPv6 address for the loopback interface if the VRF is non-default. For default VRF add the IPv6 address in the freeform.

Route-Map TAG- Enter the Route-Map tag associated with the interface IP.

Interface Description- Enter description for the interface. The maximum size limit is 254 characters.

Freeform Config- Enter additional CLI for the loopback interface if required.

Enable Interface- Select this check box to enable the interface.

  • Type - SVI

    Interface VRF- Enter the name of the interface VRF. Enter default for default VRF.

    VLAN Interface IP- Enter IP address of the VLAN interface.

    IP Netmask Length- Specify the IP netmask length used with the IP address. The valid value range is from 1 to 31.

    Routing TAG- Enter the routing tag associated with the interface IP.

    MTU- Specify the maximum transmission unit (MTU) for the Port Channel or the MTU for the interface. The valid value range for MTU for the interface is from 576 to 9216.

    Disable IP redirects- Select this check box to disable both IPv4 and IPv6 redirects on the interface.

    IPFM External-Link- Select this check box to specify that the interface is connected to an external router.

    Interface Description- Enter description for the interface. The maximum size limit is 254 characters.

    Freeform Config- Enter additional CLI for the VLAN interface if required.

    Interface Admin State- Select this check box to enable admin state for the interface.

Based on your requirements, click one of the following buttons:

  • Save - Click Save to save the configuration changes.

  • Preview - Click Preview to open the Preview interfaces configuration window and view the details.

  • Deploy - Click Deploy to configure the interfaces.

What to do next:

If you want to edit the interface, see Editing an Interface for IPFM Fabrics.

If your interface is ready, add a policy for configuring the IPFM fabric. For more information, see Adding a Policy for Configuring an IPFM Fabric

Creating a Sub-Interface for IPFM Fabrics

This section describes the procedure to create a new sub-interface for an IPFM fabric.

  1. Navigate to the Fabric Overview window for your fabric and click the Interfaces tab.

  2. Select a leaf or a spine switch from the list of devices and choose Actions > Create Subinterface.

    The Create Subinterface window appears.

  3. Click the No Policy Selected link to select a policy that is specific to IPFM.

  4. In the Select Attached Policy Template dialog box, choose the int_ipfm_subif policy template and click Select.

  5. Enter the appropriate values in the Policy Options area. Note that the appropriate Policy Options fields are displayed based on the policy.

    • Type - Port Channel

      Port Channel Member Interfaces- Specify a list of member interfaces, for example, e1/5,eth1/7-9.

      Port Channel Mode- Select one of the following channel mode options: on, active, or passive.

      Enable BPDU Guard- Select one of the following options for spanning-tree Bridge Protocol Data Unit (BPDU) guard:

      • true - enables bdpuguard

      • false - disables bpduguard

      • no - returns to default settings

    Enable Port Type Fast- Select this check box to enable spanning-tree edge port behavior.

MTU- Specify the maximum transmission unit (MTU) for the Port Channel or the MTU for the interface. The valid value range for MTU for the interface is from 576 to 9216.

SPEED - Specify the port channel speed or the interface speed.

Access Vlan- Specify the VLAN for the access port.

Trunk Allowed Vlans- Enter one of the following values:

  • none

  • all

  • vlan ranges, for example, 1-200, 500-2000, 3000)

    Enable PTP- Select this check box to enable Precision Time Protocol (PTP) for the host interface for the IPFM fabric. For more information about PTP, see PTP Configuration for IPFM Fabrics.

PTP Profile- Select a PTP profile from the drop-down list: IEEE-1588v2, SMPTE-2059-2, or AES67-2015.

PTP Vlan- Specifies the PTP vlan for member interface when PTP is enabled.

Port Channel Description- Enter description for the port channel.

Freeform Config- Enter additional CLI for the port channel if required.

Enable Port Channel- Select this check box to enable the port channel.

  • Type - Loopback

Interface VRF- Enter the name of the interface VRF. Enter default for default VRF.

Loopback IP- Enter an IPv4 address for the loopback interface.

Loopback IPv6 address- Enter an IPv6 address for the loopback interface if the VRF is non-default. For default VRF add the IPv6 address in the freeform.

Route-Map TAG- Enter the Route-Map tag associated with the interface IP.

Interface Description- Enter description for the interface. The maximum size limit is 254 characters.

Freeform Config- Enter additional CLI for the loopback interface if required.

Enable Interface- Select this check box to enable the interface.

  • Type - SVI

    Interface VRF- Enter the name of the interface VRF. Enter default for default VRF.

    VLAN Interface IP- Enter IP address of the VLAN interface.

    IP Netmask Length- Specify the IP netmask length used with the IP address. The valid value range is from 1 to 31.

    Routing TAG- Enter the routing tag associated with the interface IP.

    MTU- Specify the maximum transmission unit (MTU) for the Port Channel or the MTU for the interface. The valid value range for MTU for the interface is from 576 to 9216.

    Disable IP redirects- Select this check box to disable both IPv4 and IPv6 redirects on the interface.

    IPFM External-Link- Select this check box to specify that the interface is connected to an external router.

    Interface Description- Enter description for the interface. The maximum size limit is 254 characters.

    Freeform Config- Enter additional CLI for the VLAN interface if required.

    Interface Admin State- Select this check box to enable admin state for the interface.

Based on your requirements, click one of the following buttons:

  • Save - Click Save to save the configuration changes.

  • Preview - Click Preview to open the Preview interfaces configuration window and view the details.

  • Deploy - Click Deploy to configure the interfaces.

What to do next:

If you want to edit the interface, see Editing an Interface for IPFM Fabrics.

If your interface is ready, add a policy for configuring the IPFM fabric. For more information, see Adding a Policy for Configuring an IPFM Fabric

PTP Configuration for IPFM Fabrics

The Precision Time Protocol (PTP) is a protocol used to synchronize clocks throughout a computer network. When creating an interface, if you enable the Enable PTP check box, PTP is enabled across the fabric and on all the intrafabric interfaces. The supported PTP profiles for IPFM fabrics are IEEE-1588v2, SMPTE-2059-2, and AES67-2015.

A few things to note about the per-interface PTP profile for nonfabric ethernet interfaces are as follows:

  • You must enable PTP and select PTP profile on each nonfabric ethernet interface.

  • PTP profile can be different from the fabric level one.

  • PTP must be enabled in the fabric settings before PTP can be configured on a nonfabric ethernet interface.

If PTP is disabled from the fabric settings, the PTP config will be removed from all the interfaces, that is, both the fabric and nonfabric interfaces.

For more information about PTP monitoring for IPFM fabrics, see the section "PTP (Monitoring)" in About Switch Overview for LAN Operational Mode Setups.

Editing an Interface for IPFM Fabrics

This section describes the procedure to edit an existing IPFM fabric interface template. You can either change a template or edit the values for any of the editable parameters in the Policy Options area.

  1. Navigate to the Fabric Overview window for your fabric and click the Interfaces tab.

  2. Choose Edit interface from the Actions drop-down list.

    The Edit interface window appears.

  3. This step is optional. To change a policy, click the policy link and select a policy that is specific to IPFM.

    In the Select Attached Policy Template dialog box, choose the required interface policy template and click Save.

  4. Edit the required values in the Policy Options area. Note that the appropriate Policy Options fields are displayed based on the policy. For more information about the parameters, see Creating an Interface for IPFM Fabrics.

    Note that the following fields are specific to the int_ipfm_l3_port policy:

    IPFM Unicast Bandwidth Percentage- Specifies the dedicated percentage of bandwidth to the unicast traffic. The remaining percentage is automatically reserved for the multicast traffic. If this field is left blank, Global Unicast Bandwidth reservation is used.

    IPFM External-Link- Select this check box to specify that the interface is connected to an external router.

    Border Router- Select this check box to enables the border router configuration on the interface. The interface is a boundary of a PIM domain.

    Interface Description- Enter description for the interface. The maximum size limit is 254 characters.

  5. Based on your requirements, click one of the following buttons:

    • Save - Click Save to save the configuration changes.

    • Preview - Click Preview to open the Preview interfaces configuration window and view the details.

    • Deploy - Click Deploy to configure the interfaces.

What to do next:

Add a policy for configuring the IPFM fabric. For more information, see Adding a Policy for Configuring an IPFM Fabric.

Adding a Policy for Configuring an IPFM Fabric

For configuration that is not uniform for all leafs or spines, additional templates are provided to help you complete the configuration of an IPFM fabric.

For example, if you enable NAT on a 9300 switch, you can create an ipfm_tcam_nat_9300 policy to configure the required NAT TCAM for the switch.

Use the ipfm_telemetry policy for telemetry and ipfm_vrf policy for VRF config (routing, pim, asm).

  1. Navigate to the Fabric Overview window for your fabric and click the Policies tab.

  2. Choose Add Policy from the Actions drop-down list.

    The Create Policy window appears.

  3. Click the right arrow in the Select Switches field.

    The Select Switches dialog box appears.

  4. Select one or more switches and click Select.

  5. In the Create Policy window, click Choose Template.

  6. In the Select a Policy Template dialog box, select the required template for IPFM fabric, for example, ipfm_tcam_nat_9300. Click Select.

  7. Enter a priority for the template. The valid value ranges from 1 to 1000.

  8. Enter the values in the TCAM-related fields. Make sure that you enter the TCAM size in increments of 256 and click Save.

Editing a Policy for an IPFM Fabric

You can edit a policy for any switch in the IPFM fabric.

  1. Navigate to the Fabric Overview window for your fabric and click the Policies tab.

  2. Search for the policy template.

  3. Select the policy and choose Edit Policy from the Actions drop-down list.

    The Edit Policy window appears.

  4. Make the required changes and click Save.

PTP Configuration for IPFM Fabrics

The Precision Time Protocol (PTP) is a protocol used to synchronize clocks throughout a computer network. When creating an interface, if you enable the Enable PTP check box, PTP is enabled across the fabric and on all the intrafabric interfaces. The supported PTP profiles for IPFM fabrics are IEEE-1588v2, SMPTE-2059-2, and AES67-2015.

A few things to note about the per-interface PTP profile for nonfabric ethernet interfaces are as follows:

  • You must enable PTP and select PTP profile on each nonfabric ethernet interface.

  • PTP profile can be different from the fabric level one.

  • PTP must be enabled in the fabric settings before PTP can be configured on a nonfabric ethernet interface.

If PTP is disabled from the fabric settings, the PTP config will be removed from all the interfaces, that is, both the fabric and nonfabric interfaces.

For more information about PTP monitoring for IPFM fabrics, see the section "PTP (Monitoring)" in About Switch Overview for LAN Operational Mode Setups.

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