From: William Chen (kwchen@netvigator.com)
Date: Thu Dec 25 2003 - 14:15:02 GMT-3
Hi,
I would suggest to set the bandwidth and delay to be the same at the
subnets of routers with interfaces of different speed connected together, so
that you would have problem with EIGRP or OSPF. For example, Ethernet
connected with FastEthernet should set both to 100M. Moreover, sometimes I
would even adjust the delay.
Best Regards,
William Chen
----- Original Message -----
From: "k c" <jwongccie@yahoo.com.hk>
To: <ccielab@groupstudy.com>
Sent: Thursday, December 25, 2003 11:44 AM
Subject: Cat 3550 auto-cost ref-bw Problem
> Hi group,
>
> It is stange that the auto-cost ref-bw is different for vlan and
router-port. Any idea? By default, vlan reference to 1000M and router port
reference to 100M?
>
> interface FastEthernet0/17
> no switchport
> ip address 1.1.1.1 255.255.255.0
> end
> interface FastEthernet0/20
> switchport access vlan 101
> switchport mode dynamic desirable
> no ip address
> end
> interface Vlan101
> ip address 9.9.9.9 255.255.255.0
> end
>
> When auto-cost reference-bandwidth set to 1000
>
> Switch1#sh ip ospf int f0/17
> FastEthernet0/17 is up, line protocol is up (connected)
> Internet Address 1.1.1.1/24, Area 0
> Process ID 1, Router ID 218.102.19.174, Network Type BROADCAST, Cost: 10
> Switch1#sh ip ospf int vlan 101
> Vlan101 is up, line protocol is up
> Internet Address 9.9.9.9/24, Area 0
> Process ID 1, Router ID 218.102.19.174, Network Type BROADCAST, Cost: 1
> Transmit Delay is 1 sec, State DR, Priority 1
>
> When auto-cost reference-bandwidth set to 10000
>
> Switch1#sh ip ospf int f0/17
> FastEthernet0/17 is up, line protocol is up (connected)
> Internet Address 1.1.1.1/24, Area 0
> Process ID 1, Router ID 218.102.19.174, Network Type BROADCAST, Cost:
100
> Switch1#sh ip ospf int vlan 101
> Vlan101 is up, line protocol is up
> Internet Address 9.9.9.9/24, Area 0
> Process ID 1, Router ID 218.102.19.174, Network Type BROADCAST, Cost: 10
>
> Shining Friends!B&n$_&n3x!B73$k&p:q...
> .v:)9aAn 1!$_3sC4
> http://ringtone.yahoo.com.hk/
>
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