ISDN BRI Interface Bandwidth

[rod.sizemore]

What is the recommended bandwidth value for an ISDN BRI interface? Should it be left at the default of "64" for the purposes of the "dialer load-threshold" command calculations or should it be adjusted to "128" to reflect the two "B" channels that are available?

[makchitale]

The bandwidth command is used for routing decisions....changing the bandwidth on the BRI (the D channel) will not change the BW under the B1 & B2 channels which defaults to 64k....the dialer load threshold is based off the load on these bearer channels (B1, B2).

conf t

int bri x

bandwidth xxx

sh int brix / sh int brix 1 2

Thanks, Mak.