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тАО03-12-2011 06:46 PM
тАО03-12-2011 06:46 PM
Problem with OSPF ECMP
I'm using some Procurve 3400cl 48G as my TOR switch along with some cisco 3550.
I'm getting the default routes from two core foundry's announcing via OSPF.
This is working great in Cisco and not that great in HP.
In cisco i have two default routes (0.0.0.0) received by ospf and in HP only one default route is received.
If i kill the interface announcing this default route, the other one is active and both default routes should be active. ECMP is active by default on this switch.
Can someone point me some directions ?
Thanks
Carlos
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тАО03-15-2011 02:36 AM
тАО03-15-2011 02:36 AM
Re: Problem with OSPF ECMP
Anyone ? How can i get this switch to have two default gateways annouced by OSPF and used them ?
Right now he's only using one at the time.
"ip load-sharing" is active and with value "4" by default.
Thanks you
Carlos Santos
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тАО03-16-2011 03:13 AM
тАО03-16-2011 03:13 AM
Re: Problem with OSPF ECMP
Could you post up the output of "sh ip route" and "sh ip ospf area"?
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тАО03-16-2011 11:54 AM
тАО03-16-2011 11:54 AM
Re: Problem with OSPF ECMP
Rack B5# sh ip ospf area
OSPF Area Information
Area ID Type Cost SPFR ABR ASBR LSA Checksum
--------------- ------ ----- ------ ---- ---- ----- ----------
0.0.0.1 normal 1 543 2 6 56 0x001a687a
Rack B5# sh ip route
IP Route Entries
Destination Gateway VLAN Type Sub-Type Metric Dist.
------------------ --------------- ---- --------- ---------- ---------- -----
0.0.0.0/0 xx.xx.172.161 123 ospf External2 10 110
xx.xx.0.20/30 xx.xx.172.161 123 ospf External2 10 110
xx.xx.0.120/30 xx.xx.172.161 123 ospf InterArea 3 110
xx.xx.47.0/24 xx.xx.172.161 123 ospf InterArea 3 110
xx.xx.168.0/27 xx.xx.172.161 123 ospf InterArea 14 110
xx.xx.168.32/30 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.168.40/29 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.168.48/29 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.168.56/29 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.168.64/28 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.168.80/29 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.168.88/29 xx.xx.172.161 123 ospf InterArea 4 110
xx.xx.172.156/30 Uplink CR1 122 connected 0 0
xx.xx.172.160/30 Uplink CR2 123 connected 0 0
xx.xx.172.108/30 xx.xx.172.157 122 ospf IntraArea 2 110
xx.xx.172.116/30 xx.xx.172.157 122 ospf IntraArea 2 110
This list goes on, the main thing here is only one default route is active
If you need something else, just ask.
Thank you for your time
Carlos Santos
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тАО03-17-2011 05:50 AM
тАО03-17-2011 05:50 AM
Re: Problem with OSPF ECMP
Could you also grab the output (with both interfaces up) of "sh ip ospf nei", "show ip ospf external" and "sh ip ospf interface".
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тАО03-17-2011 10:18 AM
тАО03-17-2011 10:18 AM
Re: Problem with OSPF ECMP
Thank you for your time, I've replaced the HP switches and everything is working as supposed.
Again, thank you for trying to help me.
Carlos Santos