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Cabletron Systems Smart 04-0053-01 User Manual

Page 50

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3-6 SmartSwitch ATM User Guide

Multi-level PNNI Topology

PNNI Routing

Do the same on switch SWB3:

SWB3 # set pnnipglelection

NodeIndex(1) :

LeadershipPriority(0) : 205

— Highest priority in election process

ParentNodeIndex(0) : 2

— Node 2 will represent the peer group B in the parent group

InitTime(15) :

OverrideDelay(30) :

ReElectTime(15) :

SWB3 #

7.

Use the

show pnnipglelection

command to verify that switches SWA3 and SWB3 have become

the PGLs of their respective peer groups. For example, on switch SWA3, enter the following:

SWA3 # show pnnipglelection

NodeIndex(1) :

PGL Election Information

================================================================================

Node Index : 1

Leadership Priority : 205

Parent Node Index : 2

Init Time : 15 secs

Override Delay : 30 secs

Reelect Time : 15 secs

Time Stamp : 228588

Election State : Operating as PGL

— Switch SWA3 has become PGL of group A

Preferred PGL : 50:a0:39:00:00:00:00:00:00:00:00:00:a3:87:0b:00:20:d4:28

:c1:ff:00

Peer Group Leader : 50:a0:39:00:00:00:00:00:00:00:00:00:a3:87:0b:00:20:d4:28

:c1:ff:00

Active Parent Node Id : 48:50:39:00:00:00:00:00:00:00:00:00:00:00:01:00:20:d4:28

:c1:ff:00

SWA3 #

8.

Physically connect switch SWA3 to SWB3 to establish connectivity between peer groups A and B.

9.

Use the

show pnnilink

command to check the connectivity between the peer groups. In the

following example,

show pnnilink

is entered on switch SWA3 and shows a link to switch SWB3

(SWB3’s IP address is 206.61.237.23):

SWA3 # show pnnilink

Num(ALL) :

Num Port Node Remote Node Hello State Link Type

Number Index IP Addr

===========================================================================

1 7A1 1 206.61.237.20 2WayInside Lowest Level Horizontal Link

2 7A3 1 206.61.237.19 2WayInside Lowest Level Horizontal Link

3 7B1 1 206.61.237.23 CommonOut Outside and Uplink

— Physical link to switch SWB3

4 -- 2 N/A 2WayInside Horizontal Link to/from LGN

— Logical link between switches

SWA3 #

Note

Notice that the IP address entry for the logical link between the LGNs is N/A (Not
Applicable). Logical entities do not have IP addresses.