Symantec 5 manual Sample configuration links crossing IP routers, Figure A-2

Advanced VCS installation topics 163

Using the UDP layer for LLT

link link1 udp - udp 50000 - 192.1.2.2 192.1.2.255 link link2 udp - udp 50001 - 192.1.3.2 192.1.3.255

Sample configuration: links crossing IP routers

Figure A-2depicts a typical configuration of links crossing an IP router employing LLT over UDP. The illustration shows two nodes of a four-node cluster.

Figure A-2	A typical configuration of links crossing an IP router
Node0 at Site A	Node1 at Site B
	UDP Endpoint eth2;
	UDP Port = 50001;
	IP = 192.1.2.1;
	Link Tag = link2
	eth1;
	192.1.2.2;
	Link Tag = link2

Routers

UDP Endpoint eth1;

UDP Port = 50000;

IP = 192.1.3.1;

Link Tag = link1

eth2;

192.1.3.2;

Link Tag = link1

The configuration that the following /etc/llttab file represents for Node 1 has links crossing IP routers. Notice that IP addresses are shown for each link on each peer node. In this configuration broadcasts are disabled. Hence, the broadcast address does not need to be set in the link command of the /etc/llttab file.

set-node Node1 set-cluster 1

link link1 udp - udp 50000 - 192.1.3.1 - link link2 udp - udp 50001 - 192.1.4.1 -

#set address of each link for all peer nodes in the cluster #format: set-addr node-id link tag-name address

set-addr	0	link1 192.1.1.1
set-addr	0	link2 192.1.2.1
set-addr	2	link1	192.1.5.2
set-addr	2	link2	192.1.6.2