Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario descargar pdf (Pagina 373)

819

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

OL-10394-05 Rev. R0

Symptoms: The route target (RT) is not sent in BGP VPNv4 extended-community.

Conditions: This symptom may be observed with Cisco IOS Release 12.2(33)SB when the router

uses BGP VPNv4 update to send MDT information to the peer, which does not support IPv4 MDT

SAFI.

Workaround: There is no workaround.

• CSCsq45761

Symptoms: Traceback may occur when TE tunnels are configured and after HA is done by script.

Conditions: The symptom is observed on a Cisco 7600 series router and when TE tunnels and dot1q

are configured on a CE-facing interface. This issue is only seen when HA uses a script.

Workaround: There is no workaround.

• CSCsq47043

Symptoms: A Cisco router functioning as the standby for an Hot Standby Routing Protocol (HSRP)

group way reload when it is dissociated from that group and then re-associated with it. A sample

sequence of commands that may lead to the reload is:

[Assume that the interface in question has been previously configured with standby 1 ip command.]

Router(config)#interface g0/0.30 Router(config-subif)#no standby 1 ip

Router(config-subif)#standby 5 ip 10.10.30.105

// wait for a while.. then:

Router(config-subif)#no standby 5 ip 10.10.30.105 Router(config-subif)#standby 1 ip

Conditions: The reload is seen if the triggering commands are issued when the router is part of an

interdevice redundancy system and its redundancy state is HOT_STANDBY and if interdevice

redundancy tracks the HSRP state of the group to which the interface belongs (in other words,

scheme standby <group-name> is configured under redundancy interdevice configuration.

Workaround: Remove the scheme standby <group-name><noBmdBold> command from under the

redundancy interdevice configuration prior to configuring the standby <group number> ip

command on the interface. Also save configuration, reload and then re-apply scheme standby

<group-name> command.

• CSCsq47355

Symptoms: On Cisco 7600 routers, the switch processor may crash the router when BGP is

configured in rare situations.

Conditions: This is a rare condition that can most likely happen with L3VPN and BGP recursive

routes configured when a network, routing, or link event occurs (e.g., link flap in the remote ends,

routing flaps, etc). This issue may also require routes to be load-balanced over multiple links.

This issue only affects 12.2(33)SRB and 12.2(33)SRC and is fixed in 12.2(33)SRB4 and

12.2(33)SRC2 and later releases.

Workaround: There is no workaround.

• CSCsq48201

Symptoms: A crash may occur when creating a Bridge-Group Virtual Interface (BVI) while traffic

is flowing.

Conditions: The crash could occur when a BVI interface is first created with the command interface

BVI and traffic is being process switched by a physical interface in the same bridge-group. Once the

BVI interface is created, subsequent interface BVI commands to configure that interface will not

cause the crash.

Workaround: Remove the physical interface from the bridge-group, or prevent traffic from being

process switch by the interface when the BVI interface is first created.

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