
Layer Two Configurations FR
28.1.1.2Configure the Clear Channel Bundle on the LR1104A
Blackbox/configure> int bundle toFRSwit Blackbox/configure/interface/bundle> link t3 1 Blackbox/configure/interface/bundle> description
Blackbox/configure/interface/bundle/fr> pvc 16
Blackbox/configure/interface/bundle/fr/pvc> shaping cir 6144000 bcmax 6144000 bcmin 3072000 Blackbox/configure/interface/bundle/fr/pvc> switch 16 toBlackBox Blackbox/configure/interface/bundle/fr/pvc> exit
Blackbox/configure/interface/bundle/fr> pvc 31
Blackbox/configure/interface/bundle/fr/pvc> shaping cir 3072000 bcmax 3072000 bcmin 1536000 Blackbox/configure/interface/bundle/fr/pvc> switch 31 toLR1114A
28.1.2 MFR Configuration
The 4 x T1 MFR bundle between the LR1104A and the Black Box connects two Frame Relay switches, therefore it represents an NNI interface. The sample configuration defines the 4 x T1 bundle to be of Class C; that is, a minimum of 2 T1 links are required to be up in order to keep the bundle up. Settings for Bcmin on the MFR bundle are set to correspond with the Class C configuration; that is, the minimum anticipated bandwidth will be 2 x T1.
28.1.2.1Configure the LR1104A LR1104A at Site 1
Blackbox/configure> int bundle wan1 Blackbox/configure/interface/bundle> link t1
/* specifies that the bundle remain up as long as two T1s are up */ Blackbox/configure/interface/bundle/fr> lmi ansi Blackbox/configure/interface/bundle/fr/lmi> keepalive 8 Blackbox/configure/interface/bundle/fr/lmi> exit Blackbox/configure/interface/bundle/fr> pvc 16
/* pvc's default cir set to 6144000 bps */
Blackbox/configure/interface/bundle/fr/pvc> shaping cir 6144000 bcmax 6144000 bcmin 3072000 /* Bcmin consistent with minimum possible bundle bandwidth of two T1s */ Blackbox/configure/interface/bundle/fr/pvc> switch 16 toRouter
/* switch between wan1:16 and toRouter:16 established */ Blackbox/configure/interface/bundle/fr> exit
28.1.2.2Configure the LR1104A
Blackbox/configure> int bundle toBlackBox Blackbox/configure/interface/bundle> link ct3 1
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