Note: When the peer group identifier is based on the switch's ATM address, a change to that ATM
address can cause the peer group identifier to change (if the change part of the address falls
within the length specified by the level identifier).
Explicitly Entering a Peer Group ID
To explicitly define a peer group id, you must specify both the length and content. For example, if you
enter:
à
ð
8265ATM
>
set pnni node_ð peer_group_id: 51 47.a5.32.4e.b7.48.19
8265ATM> commit pnni
á
ñ
then the node_0 takes the peer group id from the first 51 bits of the entered string
47.a5.32.4e.b7.48.19
and 51 is the new level id. This action results in the peer group id being different from the switch's 51 bit
ATM address.
Note: The entered peer group id value must conform to the prefix of the private ATM address. PNNI
applies address checking to entered peer group ids.
This operation removes the restraint that the address of every switch in a peer group has to have a
common prefix of level id length. One peer group id, common to the network, can be entered at each
switch, thereby making the network operation independent of whether the switch addresses have a
common prefix or not.
Once you have explicitly defined a peer group id, you cannot modify the length of it by entering the SET
PNNI NODE_0 LEVEL_IDENTIFIER command. This will cause the peer group id to be determined from
the switch's ATM address. To change the length of an explicitly defined peer group id, you must re-enter
the SET PNNI NODE_0 PEER_GROUP_ID command.
Chapter 6. Configuring PNNI Parameters
63
Summary of Contents for 8265 Nways ATM Switch
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