Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Instrukcja Użytkownika Strona 203

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649
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: To recover from the condition, perform a shut/no shut on the port channel main
interface.
CSCsu54801
Symptoms: IPv6/IPv6 Tunnel adjacency information is incomplete on the line card. This prevents
IPv6/IPv6 multicast traffic on the tunnel.
Conditions: The symptoms are observed under normal operation.
Workaround: There is no workaround.
CSCsu55145
Symptoms: Router crashes due to critical software exception.
Conditions: Occurs on a Cisco ASR 1000 running Cisco IOS Release 12.2.
Workaround: There is no workaround.
CSCsu55883
Symptoms: With MLPPP configured on OSM, the following symptoms may be observed:
1. Line card might crash.
2. Links might flap.
3. Following error message from line card might be seen: "SLOT 9: Sep 14 13:48:48.479 CDT:
%COMMON_FIB-3-FIBIDBINCONS2: An internal software error occurred. Multilink1 linked to
wrong idb R11_Mu1"
Conditions: Occurs on routers running various Cisco IOS Release 12.2SR releases. Performing a
shut/no shut on the OSM (especially on the card containing MLPPP) interfaces might trigger this
issue.
Workaround: There is no workaround.
CSCsu57331
Symptoms: In a Virtual Private LAN Services (VPLS) scenario with ESM20 as core facing interface,
imposition traffic might fail.
Conditions: Occurs only when ports from Bay 1 are used as core facing interface.
Workaround: Reset the line card.
CSCsu57958
Symptoms: In a scenario where a Catalyst 6500 or Cisco 7600 performs DHCP snooping + DAI
functionality and a second device acts as DHCP relay, it was observed that DHCP snooping database
was not populated. DHCP snooping is configured in this case on the ingress VLAN (traffic from the
DHCP clients) and the DHCP server can be reached on a different egress VLAN (DHCP requests
are routed ).
DHCP Replies from the server (DHCPOFFER and DHCPACK) are not snooped by the Catalyst
6500 or Cisco 7600 and so bindings are not established. Consequence is that clients will get their
own IP Address but ARP Inspection will fail because bindings were not learned on the device.
Conditions: Occurs with DHCP Snoooping + DAI configured on a Catalyst 6500 or Cisco 7600 in
a routed scenario (Ingress VLAN and Egress VLAN are different) and DHCP Relay performed by
a different device.
Workaround: Configure DHCP Snooping on both client and server side VLANs. Problem is
applicable to both Cisco IOS Release 12.2(18)SXF and Cisco IOS Release 12.2(33)SRB.
CSCsu62667
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