
459
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
encapsulation frame-relay IETF
...
frame-relay traffic-shaping
frame-relay lmi-type ansi
frame-relay intf-type dce
no clns route-cache
max-reserved-bandwidth 100
!
interface Serial1/0.1/1/4/2:0.101 point-to-point
...
frame-relay interface-dlci 101
class BANKOFIRE-S1/0.1/1/4/2:0.101-SR611638725
map-class frame-relay BANKOFIRE-S1/0.1/1/4/2:0.101-SR611638725
frame-relay cir 768000
frame-relay mincir 768000
no frame-relay adaptive-shaping
service-policy input BANKOFIRE-IN-S1/0.1/1/4/2:0
service-policy output BANKOFIRE-OUT-S1/0.1/1/4/2:0
frame-relay fragment 600
!
Workaround 2: Make sure that the fragmentation size is different in different interfaces (with
interface fragmentation).
• CSCta22221
Symptoms: Frame relay client triggers reload of standby router.
Conditions: This symptom occurs if many frame relay related configurations are present.
Workaround: There is no workaround.
• CSCta58068
Symptoms: During BGP convergence, a CPU spike may be seen on the local PE in an MVPN
configuration.
Conditions: The symptom may be observed with the following conditions:
–
Remote PE neighbor switchover.
–
On local PE, do a clear ip /jointfilesconvert/422273/bgp /jointfilesconvert/422273/bgp nbr.
–
On bring up of local PE.
–
Large configurations, such as one with 300 MDT default tunnels.
The following is an example of an MVPN configuration where this problem can be seen:
1. OSPF routing protocol is enabled on all the networks in the topology.
2. Each PE router has 100 MVRFs defined (between vpn_0 to vpn_99).
3. MDT default is configured on all the mVRFs on the PE routers.
4. PE routers have an iBGP session, ONLY with the RR (route-reflector).
5. eBGP session exists between the Routem and PE1, with Routem sending 200,010 VPNv4
routes.
6. OSPF session also exists between Routem and PE1, with Routem sending 100 OSPF routes.
In effect, the following states are present in the network:
On PE and RR routers:
1. IGP states = 100 OSPF routes.
2. BGP states = 200,010 VPNv4 routes.
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