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New Member

Slow connection over Multilink serial connection

I seem to be having some slowness issues with a multilink connection between a Cisco 2821 and 2811 router. I currently have two private T1 lines connecting the two routers and joined into a Multilink connection.This should give me a 3 mbps connection between my sites. However when I try and move a file between the two sites I'm being limited to less than 300 kbps even when there is no traffic. I'm hoping that you guys can help me to figure out what the problem is. I have verified with the ISP that they are providing a Layer 2 connection only so they are not filtering the bandwidth at all.

 

Here is the config that I have for the interfaces on the remote 2811 router:

 

interface Multilink1
 description P2P Multilink to WABURL
 bandwidth 3080
 ip address 10.10.10.3 255.255.255.254
 ip route-cache flow
 ppp multilink
 ppp multilink fragment disable
 ppp multilink group 1

 

interface Serial0/0/0
 bandwidth 1540
 no ip address
 encapsulation ppp
 ip route-cache flow
 tx-ring-limit 26
 tx-queue-limit 26
 no keepalive
 no fair-queue
 ppp multilink
 ppp multilink group 1


interface Serial0/1/0
 description P2P link to WABURL-2821 se0/1/0
 bandwidth 1540
 no ip address
 encapsulation ppp
 ip route-cache flow
 tx-ring-limit 26
 tx-queue-limit 26
 ppp multilink
 ppp multilink group 1

1 REPLY
New Member

One more thing I forgot to

One more thing I forgot to add. On my main router, Cisco 2821, the serial connections have the following config:

 

interface Multilink1
 bandwidth 3080
 ip address 10.10.10.2 255.255.255.254
 ip route-cache flow
 ppp multilink
 ppp multilink group 1
 ppp multilink fragment disable

 

interface Serial0/0/0
 no ip address
 encapsulation ppp
 ip route-cache flow
 tx-ring-limit 26
 tx-queue-limit 26
 no keepalive
 no fair-queue
 service-module t1 clock source internal
 ppp multilink
 ppp multilink group 1
!
interface Serial0/1/0
 no ip address
 encapsulation ppp
 ip route-cache flow
 tx-ring-limit 26
 tx-queue-limit 26
 service-module t1 clock source internal
 ppp multilink
 ppp multilink group 1

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