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Sample configuration: links crossing ip routers – Symantec Veritas 5 User Manual

Page 163

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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-2

depicts 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

UDP Endpoint eth2;
UDP Port = 50001;
IP = 192.1.2.1;
Link Tag = link2

UDP Endpoint eth1;
UDP Port = 50000;
IP = 192.1.3.1;
Link Tag = link1

eth1;
192.1.2.2;
Link Tag = link2

eth2;
192.1.3.2;
Link Tag = link1

Routers

Node0 at Site A

Node1 at Site B

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

163

Advanced VCS installation topics

Using the UDP layer for LLT