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11-31
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 11 Configuring ATM Routing and PNNI
Advanced PNNI Configuration
Background Routes From CBR/CTD Table
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 Routes To Node 2
1. Hops 1. 1:ATM0/1/2 -> 2
->: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
<-: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
2. Hops 1. 1:ATM0/1/1 -> 2
->: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
<-: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
1 Routes To Node 5
1. Hops 1. 1:ATM0/1/0 -> 5
->: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
<-: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
Background Routes From CBR/CTD Table
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 Routes To Node 2
1. Hops 1. 1:ATM0/1/2 -> 2
->: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
<-: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
2. Hops 1. 1:ATM0/1/1 -> 2
->: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
<-: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
1 Routes To Node 5
1. Hops 1. 1:ATM0/1/0 -> 5
->: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
<-: aw 5040 cdv 138 ctd 154 acr 147743 clr0 10 clr01 10
Configuring Link Selection
Link selection applies to parallel PNNI links between two switches. Link selection allows you to choose
the method the switch uses during call setup for selecting one link among multiple parallel links to
forward the call.
Note Calls always use the load balance method over parallel IISP links between two switches.
Table 11-2 lists the PNNI link selection methods from which you can choose.
Table 11-2 PNNI Link Selection Methods
Precedence
Order Method Description
Service Category
Availability
1 admin-weight-minimize Places the call on the link with the
lowest administrative weight.
CBR
1
, VBR-RT
2
,
VBR-NRT
3
2 blocking-minimize Places the call on the link so that
higher bandwidth is available for
subsequent calls, thus minimizing
call blocking.
CBR, VBR-RT,
VBR-NRT
3 transmit-speed-maximize Places the call on the highest speed
link.
CBR, VBR-RT,
VBR-NRT
4 load-balance Places the call on the link so that the
load is balanced among parallel links
for a group.
CBR, VBR-RT,
VBR-NRT,
ABR
4
,
UBR
5