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This chapter describes open and resolved severity 1 and 2 caveats and select severity 3 caveats:
The “Open Caveats” sections list open caveats that apply to the current release and may apply to previous releases. A caveat that is open for a prior release and is still unresolved applies to all future releases until it is resolved.
The “Resolved Caveats” sections list caveats resolved in a specific release, but open in previous releases.
The bug IDs are sorted alphanumerically.
 Note |
The Caveats section includes the bug ID and a short description of the bug. For details on the symptoms, conditions, and workaround for a specific caveat you must use the Bug Search Tool. |
Cisco Bug Search Tool (BST), the online successor to Bug Toolkit, is designed to improve effectiveness in network risk management and device troubleshooting. You can search for bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. For more details on the tool, see the help page located at http://www.cisco.com/web/applicat/cbsshelp/help.html
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Caveat ID Number |
Description |
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SR_OSPF: High conv observed with LDP labeled in primary path and unlabeled/imp null backup path. |
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ASR920 monitor session configuration without destination interface blocks ISIS on source interface. |
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Caveat ID Number |
Description |
|---|---|
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T1 service latency is asymmetric in a simple linear topology. |
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ASR920 crash in cylon_mgr when MPLS TE interface shut down. |
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ASR920 VPLS A-S PW: Complete traffic drop (imp and disp) over VPLS Act PW. |
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ASR-920-10SZ-PD: Ping loss on built-in Te 0/0/10 or 0/0/11 port and CRC or MAC errors at peer end. |
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Unexpected traffic sent out from ASR920 access port from REP ring. |
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ASR920: Not able to configure xconnect untagged service instance with EVPN under the same interface. |
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ZTP reset as last reload reason in IOS when ZTP button pressed greater than 8 seconds. |
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Fan speed display in IOS not matching the actual written value and read value. |
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Removal of the policy from the service instance under a tengig interface causes traffic loss |
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Traffic fails after moving or relearning mac-address from EFP to Xconnect interface. |
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IPv4 deny ACL applied in the BDI is blocking L2 switched traffic under certain conditions. |
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Egress QOS fails when speed is changed at interface through nego auto, speed CLI command. |
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ZTP not triggered with gratuitous ARP. |
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Traffic forwarding not happening for VLANs added through encap dot1q add command in TEFP. |
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ASR920: Cylon_Mgr resources leaked on multiple occurrences of primary core BFD session flaps |
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Fan speed display in IOS not matching the actual written value and read value. |
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ASR-920-12SZ-IM: Ports 4 to7 no traffic flow on TDM IM removal and inserting Gigabit Ethernet IM. |
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ASR-920-12SZ-IM: CIsco ASR 920 routers issue with sfp-h10gb-cu1m cabling. |
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ASR920 REP: Not able to achieve less than 50 ms convergence. |
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Tx packets or Tx bytes generated is always lesser than configured rate-steps. |
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Caveat ID Number |
Description |
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dualrate_eem_policy does not succeed during port mode change which causes BDI Ping failure |
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G8265.1: PTP flaps between Holdover and Locked with 64/64 packet rate and HOTSTANDBY |
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Traffic forwarding not happening for VLANs added via encap dot1q add command in TEFP |
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Ten Gig interface going into admin down state after one gig shut down |
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ASR920: Random BFD Flap seen on ASR920 |
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Caveat ID Number |
Description |
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Wrong marking for locally generated packet of BFD,LDP, and BGP |
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Cisco IOS XE Software for Cisco ASR 920 Series Routers Arbitrary File Overwrite Vulnerability |
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DHCP Snooping Database restore/renew failing on all ASR903/ASR920 variants |
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