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Bridging over Two serial links

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NickCheung

Technical User
Jun 22, 2001
6
0
0
HK
Dear,

I want to bridge traffic from a 2501 (one ethernet port) to a riverstone router over 2 T1. Is the command "bridge-group xxx circuit-group xxx" Cisco proprietary?
As I know I can¡¦t config same bridge group for two serial interfaces. This will cause looping. How can I use both T1 to convey the traffic between two different routers?

Many Thanks
Nick ::)
 
Is the 2 circuits a PPP? You can distribute the between both t1 on the router. You can load balance the circuits.
There are several different ways to accomplsh this task. EIGRP, ppp multilink Jeter@LasVegas.com
J.Fisher CCNA
 
Thanks Fisher,

2 circuits are using PPP. If I use PPP Multilink, will the loop still there? Could you give me a sample config?

Thanks again
Nick ::)
 
Here is a working config. We tested the the spans by pulling 1 T1 off and all traffic routed down the working pipe. When the T1 was reinstalled then the traffic started again down both pipes ( load Balancing )

router A

interface Multilink1
ip address 192.168.1.25 255.255.255.252
no ip mroute-cache
compress stac caim 0
no cdp enable
ppp multilink
no ppp multilink fragmentation
multilink-group 1
!
interface FastEthernet0/0
ip address 172.16.11.43 255.255.0.0
speed 100
full-duplex
!
interface Serial0/0
description Point-to-Point T1's
bandwidth 1544
no ip address
encapsulation ppp
no ip mroute-cache
no fair-queue
compress stac caim 0
service-module t1 clock source internal
ppp multilink
multilink-group 1
!
interface Serial0/1
description Point-to-Point T1's
bandwidth 1544
no ip address
encapsulation ppp
no ip mroute-cache
no fair-queue
compress stac caim 0
service-module t1 clock source internal
ppp multilink
multilink-group 1


Router B

interface Multilink1
ip address 192.168.1.26 255.255.255.252
no ip mroute-cache
compress stac caim 0
no cdp enable
ppp multilink
no ppp multilink fragmentation
multilink-group 1
!
interface FastEthernet0/0
ip address 192.100.100.198 255.255.255.0 secondary
ip address 10.30.1.2 255.255.0.0
ip helper-address 172.16.3.1
speed 100
full-duplex
!
interface Serial0/0
bandwidth 1544
no ip address
encapsulation ppp
no ip mroute-cache
no fair-queue
compress stac caim 0
ppp multilink
multilink-group 1
!
interface Serial0/1
bandwidth 1544
no ip address
encapsulation ppp
no ip mroute-cache
no fair-queue
compress stac caim 0
ppp multilink
multilink-group 1
Jeter@LasVegas.com
J.Fisher CCNA
 
Thanks Fisher,

The concern is only one end is Cisco Router. Another end is a Riverstone router. So if this PPP multilink is only applied for Cisco. I am afriad if the config is ok.

Thanks
Nick ::-(
 
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