[c-nsp] Multilink Routing Problem

[Paul Stewart]

Hi folks.. missing something obvious here.;)

 

Cisco 6500 on one side, 2621 on other (customer prem)

 

Relevent 6500 Config:

 

controller T1 5/0/7

 framing esf

 clock source internal

 linecode b8zs

 channel-group 1 timeslots 1-24

 

controller T1 6/0/7

 framing esf

 clock source internal

 linecode b8zs

 channel-group 1 timeslots 1-24

 

interface Multilink1

 ip address xx.xx.120.201 255.255.255.252

 ppp multilink

 multilink-group 1

 

interface Serial5/0/7:1

no ip address

 encapsulation ppp

 ppp multilink

 multilink-group 1

 

interface Serial6/0/7:1

no ip address

 encapsulation ppp

 ppp multilink

 multilink-group 1

 

router ospf 1

log-adjacency-changes

 redistribute connected subnets

xxxxxxxxxxxxx

xxxxxxxxxxxxx

 

 

2600 Config:

 

interface Multilink1

ip address xx.xx.120.202 255.255.255.252

 ppp multilink

 ppp multilink group 1

 

interface Serial0/0

  no ip address

 encapsulation ppp

 service-module t1 timeslots 1-24

 ppp multilink

 ppp multilink group 1

 

interface Serial0/1

no ip address

 encapsulation ppp

 service-module t1 timeslots 1-24

 ppp multilink

 ppp multilink group 1

 

ip route 0.0.0.0 0.0.0.0 xx.xx.120.201

 

 

 

>From the 6500 or the 2621 I can ping between the interfaces no problem but
can't get traffic past the 6500.  It's redistributing routes via OSPF to the
rest of our network but for some reason not the multilink IP address..
Anything make sense about this? I can ping the local 6500 interface from
anywhere in our network but not the 2621 end (except when on the 6500).

 

#sh ppp multilink

 

Multilink1, bundle name is dis1-rtr-pt

  Endpoint discriminator is dis1-rtr-pt

  Bundle up for 06:32:41, total bandwidth 3072, load 1/255

  Receive buffer limit 24000 bytes, frag timeout 1000 ms

    0/0 fragments/bytes in reassembly list

    0 lost fragments, 22 reordered

    0/0 discarded fragments/bytes, 0 lost received

    0xF19 received sequence, 0xC3E sent sequence

  Member links: 2 active, 0 inactive (max not set, min not set)

    Se0/0, since 06:32:41

    Se0/1, since 06:32:37

No inactive multilink interfaces

 

Originally we had OSPF on both sides of the link and the OSPF session would
come up no problem as "point to point" .. Confused, we moved to static
routing to try and prove this out.  Is there something special you have to
do to get a multilink bundle redistributed in OSPF??

 

Thanks in advance,

 

Paul Stewart