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Layer Two Configurations FR
141
28.1.1.2 Configure the Clear Channel Bundle on the LR1104A
Blackbox/configure> int bundle toFRSwit
Blackbox/configure/interface/bundle> link t3 1
Blackbox/configure/interface/bundle> description "DS-3 bundle to FR Switch"
Blackbox/configure/interface/bundle> encap fr
Blackbox/configure/interface/bundle> fr
Blackbox/configure/interface/bundle/fr> intf_type nni
Blackbox/configure/interface/bundle/fr> lmi ansi
Blackbox/configure/interface/bundle/fr/lmi> exit
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.
28.1.2.1 Configure the LR1104A LR1104A at Site 1
Blackbox/configure> int bundle wan1
Blackbox/configure/interface/bundle> link t1 5-8
Blackbox/configure/interface/bundle> description "6 Mbps MFR"
Blackbox/configure/interface/bundle> encap fr
Blackbox/configure/interface/bundle> fr
Blackbox/configure/interface/bundle/fr> intf_type nni
Blackbox/configure/interface/bundle/fr> mfr class C 2
/* 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
28.1.2.2 Configure the LR1104A
Blackbox/configure> int bundle toBlackBox
Blackbox/configure/interface/bundle> link ct3 1 1-4
Blackbox/configure/interface/bundle> description "6Mbps MFR to LR1104A"
Blackbox/configure/interface/bundle> encap fr
Blackbox/configure/interface/bundle> fr
Blackbox/configure/interface/bundle/fr> intf_type nni
Blackbox/configure/interface/bundle/fr> mfr class C 2
Blackbox/configure/interface/bundle/fr> lmi ansi
Blackbox/configure/interface/bundle/fr/lmi> keepalive 10
Blackbox/configure/interface/bundle/fr/lmi> exit
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> exit
Blackbox/configure/interface/bundle/fr> exit 2