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VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol by Adnan Adam Onart, Ayikudy Srikanth

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3.3. Sniffed Data from VRRP Messages

This section displays some captured VRRP messages and interprets the values to give the reader a closer familiarity with VRRP messages. The source of our sniffer trace data discussed below is Janusis [1999]. Figure 3-4 displays a message dispatched by an owner/master.

Figure 3-4. A message from the owner

The specific values of Figure 3-4 are explained in Table 3-3. Note that we italicize the VRRP-relevant fields of the IP datagram. We alternately boldface the message fields to make it easier to recognize them.

Table 3-3. A VRRP Message Dispatched by an Owner
FIELD HEX DEC
Selected IP Fields
TTL FF 255
Protocol ...

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