user manual

Configuring Data-Link Switching Plus
DLSw+ Configuration Task List
BC-298
Cisco IOS Bridging and IBM Networking Configuration Guide
78-11737-02
To define peer groups, configure border peers and assign the local peer to a peer cluster, use the
following command in global configuration mode:
Use the group keyword to define a peer group, the border keyword to define a border peer and the
cluster keyword to assign the local peer to a peer cluster. When the user defines the cluster option in
the dlsw local-peer command on the member peer router, the cluster information is exchanged with the
border peer during the capabilities exchange as the peers become active. The border peer uses this
information to make explorer replication and forwarding decisions.
The following command configures the router as the Border peer that is a member of group 2:
dlsw local-peer peer-id 10.2.13.4 group 2 border
Configure the cluster option in the dlsw remote-peer command on a border peer to enable the DLSw+
Peer Clusters feature without forcing every DLSw+ router in the network to upgrade their software. To
enable the DLSw+ Peer Clusters feature on a Border Peer, use the following command in global
configuration mode:
The following command configures a border router as a member of cluster 5:
dlsw remote-peer tcp 10.2.13.5 cluster 5
A peer-on-demand peer is a non-configured remote-peer that was connected because of an LLC2 session
established through a border peer DLSw+ network. On-demand peers greatly reduce the number of peers
that must be configured. You can use on-demand peers to establish an end-to-end circuit even though the
DLSw+ routers servicing the end systems have no specific configuration information about the peers.
This configuration permits casual, any-to-any connection without the burden of configuring the
connection in advance. It also allows any-to-any switching in large internetworks where persistent TCP
connections would not be possible.
Command Purpose
Router(config)# dlsw local-peer [peer-id
ip-address] [group group] [border] [cost cost]
[cluster cluster-id] [lf size] [keepalive
seconds] [passive] [promiscuous] [biu-segment]
[init-pacing-window size] [max-pacing-window
size]
Enables peer groups and border peers.
Command Purpose
Router(config)# dlsw remote-peer list-number tcp
ip-address [backup-peer [ip-address |
frame-relay interface serial number dlci-number
|
interface name]] [bytes-netbios-out
bytes-list-name] [circuit-weight weight]
[cluster cluster-id] [cost cost] [dest-mac
mac-address] [dmac-output-list
access-list-number] [host-netbios-out
host-list-name] [inactivity] [dynamic]
[keepalive seconds] [lf size] [linger minutes]
[lsap-output-list list] [no-llc minutes]
[passive] [priority] [rif-passthru
virtual-ring-number] [tcp-queue-max size]
[timeout seconds]
Defines the border peer router as part of a particular cluster and
enables the DLSw+ Peer Clusters feature.