Ripng Packet Format - HP 3600 v2 series Configuration Manual

RIPng packet format

Basic format
A RIPng packet consists of a header and multiple route table entries (RTEs). The maximum number of RTEs
in a packet depends on the IPv6 MTU of the sending interface.
Figure 100 RIPng basic packet format
Packet header description:
Command: Type of message. 0x01 indicates Request; 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 101 Next hop RTE format
0
IPv6 next hop address is the IPv6 address of the next hop.
Figure 102 IPv6 prefix RTE format
0
IPv6 prefix RTE field description:
IPv6 prefix—Destination IPv6 address prefix.
•
Route tag—Route tag.
•
Prefix len—Length of the IPv6 address prefix.
•
Metric—Cost of a route.
•
7
IPv6 next hop address (16 octets)
Must be zero
7
IPv6 prefix (16 octets)
Route tag
15
Must be zero
15
Prefix length
264
31
0xFF
31
Metric