MultilinkPPP bandwidth

Unanswered Question
Nov 16th, 2009

Hi folks,

I have a configuration with 2 physical WAN interfaces (each one 1024 kbps) and one Multilink group as follows:

RouterA_|====1024====|_RouterB

________|====1024====|

interface Multilink7

description ENLACE XXXXXXXXXXX

bandwidth 1024

ip address X.Y.Z.W 255.255.255.252

ip route-cache flow

ip tcp header-compression iphc-format

no ip mroute-cache

ppp multilink

ppp multilink fragment disable

ppp multilink group 7

service-policy output XXXXX

ip rtp header-compression iphc-format

!

interface Serial2/2

description ENLACE A

no ip address

encapsulation ppp

no ip mroute-cache

serial restart-delay 0

no fair-queue

ppp multilink

ppp multilink group 7

!

interface Serial2/6

description ENLACE B

bandwidth 1024

no ip address

encapsulation ppp

no ip mroute-cache

serial restart-delay 0

no fair-queue

ppp multilink

ppp multilink group 7

!

!

The second link was added recently, so if each interface has 1024kbps of bandwidth, should I configure the bandwidth command of the multilink group with 2048 kbps??

How would you improve this configuration?

Thanks in advance for your help!

I have this problem too.
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Giuseppe Larosa Mon, 11/16/2009 - 08:55

Hello Orlando,

bandwidth command is an administrative parameter.

it affects OSPF and EIGRP metric calculation and provides the reference value for some QoS commands of modular QoS like bandwidth percent.

Hope to help

Giuseppe

Joseph W. Doherty Mon, 11/16/2009 - 09:38

"The second link was added recently, so if each interface has 1024kbps of bandwidth, should I configure the bandwidth command of the multilink group with 2048 kbps?? "

Either that or see if the multilink interface picks up its bandwidth from the active bundled links.

"How would you improve this configuration? "

For 2 Mbps of MLPPP bandwidth, you might consider not using the TCP and RTP header compression.

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