Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Instrukcja Użytkownika Strona 267

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713
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Symptoms: On Cisco 7600 configured with VPLS, if the traffic on the ingress direction and egress
direction follows different Forwarding Engines (DFC or CFC), the dynamically learned entries may
not be synchronized after a line card online insertion and removal (OIR), resulting in the traffic
being flooded for those MAC entries.
Conditions: Occurs under the following scenario:
1. The traffic flow needs to be asymmetrical, for example in a VPLS scenario, the ingress traffic
comes from a switchport in a ES-20 linecard (which has a distributed forwarding engine) and is
forwarded to a core facing linecard like SIP-400. In this flow, the ingress traffic is forwarded by the
ES-20 local forwarding engine and the opposite traffic (MPLS core to access) is forwarded by the
central forwarding engine.
2. A line card OIR happens
Workaround: Clear MAC address table dynamic entries.
CSCsl30331
Symptom: Prefixes are allowed by the outbound route-map even though the match condition is met
and the action is set to deny.
Conditions: Occurs in the following scenario: 1. The iteration with the deny action contains a match
community. 2. The continue statement is used in one of the previous iterations.
Workaround: If there is single match clause based on NLRI, the condition is avoided.
Further Problem Description: Route-maps can be used without continue to avoid the problem.
CSCsl31182
Symptoms: The router experiences high CPU.
Conditions: This issue only occurs when there is temporary Mroute inconsistency between PIM
neighboring routers.
Workaround: Enable no ip pim v1-rp-reachability on PIM-RP and non-RP PIM routers.
Further Problem Description: The PIMv1 RP-reachability packet forwarding loop occurs when
received from (*,G)’s non-RPF interface.
CSCsl31683
Symptoms: PC error messages are seen along with tracebacks and SPA console is not available while
running atlas BERT.
Conditions: The issue is seen when running atlas BERT on CHSTM1.
Workaround: Reload the SPA
CSCsl32122
Symptoms: VPN client users using a certificate to connect to a Catalyst 6000 or Cisco 7600 with
VPN blade fail to connect. IPSec negotiation fails during mode configuration.
Conditions: Conditions are unknown at this time.
Workaround: Preshared key authenticated VPN clients can connect without problem.
CSCsl34481
Symptoms: Router crashes due to IPv6 multicast routing.
Conditions: This happens after applying multicast routing configurations, and again while
unconfiguring.
Workaround: There is no workaround.
CSCsl34523
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