Raisecom ISCOM2600G-HI (A) Series Configuration Manual page 256

Raisecom
ISCOM2600G-HI (A) Series Configuration Guide
The information to be exchanged by the router is all information that it knows, namely, its
routing table.
Routers exchange routing information periodically (every 30s by default) and update their
routing tables according to received routing information (or according to triggering
conditions).


Based on previous advantages and disadvantages, RIP is applicable to small-scale networks.
Version
There are three RIP versions: RIPv1, RIPv2, and RIPng. RIPv1 and RIPv2 are applicable to
the IPv4 network while RIPng is applicable to the IPv6 network. The ISCOM2600G-HI series
switch supports RIPv1 and RIPv2.
Classful routing protocol
The packet does not contain the subnet
mask, so devices on the network must use
the same subnet mask. Otherwise, errors
will occur.
RIPv1 uses broadcast packets for update.
The broadcast address is 255.255.255.255.
Support automatic route aggregation
rather than manual route aggregation.
RIPv1 does not support inter-router
authentication.
RIPv1 does not support tagging routes.
Anti-loop mechanism
RIP supports the following anti-loop mechanisms:

The largest advantage is easy implementation and small overhead.
RIP has the following disadvantages:
The maximum available distance is 15 (the value 16 indicates an unreachable
–
distance), so RIP restricts the network scale.
The information to be exchanged by routers is the entire routing table. When the
–
network scale grows, the overhead will increase.
"The bad news is transmitted slowly", so the convergence time for the update process
–
is too long.
RIPv1
Maximum number of hops: a maximum number of hops is defined (15). When it is 16, it
indicates an unreachable destination.
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RIPv2
Classless routing protocol
Support VLSM. The update message carries
the subnet mask.
RIPv2 uses multicast packets for update.
The multicast address is 224.0.0.9.
Support both automatic route aggregation
and manual route aggregation. You can
manually disable automatic route
aggregation.
Support authenticating protocol packets in
plaintext or MD5 authentication mode, thus
enhancing security.
Support tagging routes for filtering and
making policies.
5 IP services
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