Ripng Packet Processing Procedure - HPE 5800 Series Configuration Manual

Figure 82 RIPng basic packet format
Packet header description:
•
Command—Type of message. A value of 0x01 indicates Request, and a value of 0x02
indicates Response.
•
Version—Version of RIPng. It can only be 0x01.
•
RTE—Route table entry. It is 20 bytes for each entry.
RTE format
The following are types of RTEs in RIPng:
•
Next hop RTE—Defines the IPv6 address of a next hop.
•
IPv6 prefix RTE—Describes the destination IPv6 address, route tag, prefix length, and metric
in the RIPng routing table.
Figure 83 Next hop RTE format
IPv6 next hop address is the IPv6 address of the next hop.
Figure 84 IPv6 prefix RTE format
IPv6 prefix RTE format description:
•
IPv6 prefix—Destination IPv6 address prefix
•
Route tag—Route tag
•
Prefix length—Length of the IPv6 address prefix
•
Metric—Cost of a route

RIPng packet processing procedure

Request packet
When a RIPng router first starts or must update entries in its routing table, it usually sends a multicast
request packet to ask for needed routes from neighbors.
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