Hi,
we have an upcoming dual 4500E Sup8-E installation in Easy VSS
the os that is being shipped is with ip base licensing - IOS XE - cat4500es8-universalk9.SPA.03.08.00.E.152-4.E.bin
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/release/note/ol-38xe-4500x.html#pgfId-2560650
we have a setup where the core switches are talking to 2 wan routers.
Since there are multiple links between routers and core switches, we would like to enable OSPF to manage all routes.
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I want to have ospf 1 area between routers and core switches and every Local lan VLANS/segments to be part of area 0
and then provide an area 0 range to summarize them before they enter area 1, on WAN routers BGP is configured with MPLS PE
and we are expecting the summarize area 0 route to be received by core switch and then advertise over BGP towards WAN.
we also want to passive-interface all and only enable ospf between required links.
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There is small caveat in the OS release notes:
IP Base supports only one OSPFv2 and one OSPFv3 instance with a maximum number of 1000 dynamically learned routes.
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I was wondering whether the following configs/commands will work in this ipbase OS, feature navigator says it supports ospfv2 but not sure about what features within that:
Post VSS -
router ospf 1
router-id 10.0.0.1
area 0 authentication message-digest
area 1 authentication message-digest
area 0 range 10.0.0.0 255.255.0.0
network 10.0.0.0 0.0.255.255 a 0
network 192.168.1.1 0.0.0.0 a 1
network 192.168.2.1 0.0.0.0 a 1
network 192.168.3.1 0.0.0.0 a 1
network 192.168.4.1 0.0.0.0 a 1
passive-interface default
no passive-interface gi 1/2/1
no passive-interface gi 1/2/2
no passive-interface gi 2/2/1
no passive-interface gi 2/2/2
int range gi 1/2/1,1/2/2, 2/2/1,2/2/2
ip ospf message-digest-key 1 md5 c1$c0
1.Both routers has 2 LAN ports enable with ospf in area 1 connected to both core 4500s and 1 WAN running on BGP connected MPLS PE
2.local-preference will be higher for 1st router say 200 and med value will also be lower say 100, so this will the primary path for incoming and outgoing traffic.Second router we have local pref at default, med value at 200 or just prepend as-path multiple times to make this backup.
3.Since there is a limitation of 1000 routes, i was thinking of redistributing bgp on wan 1 router and also summarize external routes to keep limit within 1000 prefixes.
4.Second router will only do default-information originate always in ospf towards core switch and also summarize external routes to keep limit within 1000 prefixes. no redistribution is required, Any route over wan or primary router fails then traffic should go via the secondary wan router through separate POP/service provider.
Anyhow that's the scenario but will the ospf commands above run on the 4500 ipbase image??? thats the real question.....the ordering should have been enterprise os i know, but this is what we have now.
