From: Ronny Jonathan (rjonathan@hotpop.com)
Date: Wed Oct 08 2003 - 11:33:36 GMT-3
Are all the 3 interfaces connected to a 10Mbps switch/hub ?
Do a show interface to confirm ...
----- Original Message -----
From: "Yulan Lee" <ylee888@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, October 08, 2003 7:07 PM
Subject: Auto-cost reference-bandwidth problem
> All,
>
> We know OSPF cost is derived from 10**8 / BW. (See P425 of Doyle) With the
> default reference BW, OSPF will not be able to differentiate the cost of
FE,
> GE or OC3. I.e. FE with 100M is having same cost as GE with 1,000M.
>
> The 'auto-cost reference 5000' make mathematic sense if you want to change
> the cost for GE to 5. By doing so, you would expect:
> 1. Cost for FE will be changed to 50, and
> 2. Cost for Ethernet to 500.
>
> But, why am I getting the 'Cost 500' for all three types of interface???
>
> cat2(config-router)#au ref 5000
> cat2#sio int g0/1
> GigabitEthernet0/1 is down, line protocol is down (notconnect)
> Internet Address 1.1.1.1/24, Area 1111
> Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 500
>
> cat2#sio int f0/22
> FastEthernet0/22 is down, line protocol is down (notconnect)
> Internet Address 2.2.2.2/24, Area 1111
> Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 500
>
> bb1#sio int e0
> Ethernet0 is up, line protocol is up
> Internet Address 3.3.3.3/24, Area 333
> Process ID 1, Router ID 9.9.9.9, Network Type BROADCAST, Cost: 500
>
> Im running: c3550-i5q3l2-mz.121-14.EA1.bin on Cat3550
> bb1 is a 2509 running: c2500-is-l.122-15.T7.bin
> Same problem on 2620 running: c2600-ik9o3s3-mz.122-15.T7.bin
>
> Thanks,
> Yulan
>
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