Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Instrukcja Użytkownika Pobierz pdf (Strona 59)

505

Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8

OL-10394-05 Rev. R0

2. STP BPDUs are being tunneled up to the Cisco 7609 router via L2PT.

3. L2PT is configured locally on the Cisco 7609 router.

Workaround: Apply a VACL where the RSPAN session is sourced:

mac access-list extended block_l2tp_dmac

deny any host 0100.0ccd.cdd0 L2PT destination mac

permit any any

vlan access-map block_l2tp 10

match mac address block_l2tp_dmac

action forward

vlan filter block_l2tp vlan-list 5 insert rspan vlan. (In this case, it is 5)

• CSCtb70584

Symptoms: With MSToEVC and N-PE redundancy enabled between two Cisco 7600 series routers

in a ring topology, the assigned root Cisco 7600 series router blocks its connection to the other router

due to a dispute state.

Conditions: This issue is seen in a ring topology with MSToEVC and N-PE redundancy between two

nodes. It occurs when there are valid active and backup MPLS-TE tunnels between the nodes.

BPDUs travel across both tunnels (even though they should only traverse the primary) and cause the

dispute state.

Workaround: Disable the backup tunnel between the nodes, although this removes the redundancy

in case the link between the nodes fails.

• CSCtb78266

Symptoms: An incorrect NAS port ID is given when testing IDBless VLAN for PPPoE.

Conditions: The symptom occurs on a Cisco 7200 router that is running Cisco IOS

Release 12.4(15)T10.

Workaround: There is no workaround.

• CSCtb79113

Symptoms: If there is a PWE between two Cisco 7600 series routers and if one of the routers reloads,

the PWE3 comes up once the device has booted after the reload but it does not pass any traffic.

Conditions: The symptom is observed if there is a PWE between two Cisco 7600 series routers and

if one of the routers is booted after a reload.

Workaround: Take the xconnect statements off and apply them back on (sometimes on one side and

sometimes both sides).

• CSCtb80410

Symptoms: SP crash due to delay in the Standby Supervisor powering down during CBUS recovery.

Conditions: The symptom is observed when the Standby Supervisor has a faulty backplane

connector to jam the constellation bus.

Workaround: There is no workaround.

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Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Instrukcja Użytkownika Strona 59