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Configure IP interfaces for the SSR if you want to use the SSR for IP-based unicast or
multicast traffic. This chapter
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provides an overview of IP.
•
describes creating and modifying IP interfaces.
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indicates what you need to do after you create IP interfaces.
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discusses configuring the SSR for VRRP.
What Is IP?
The Internet Protocol (IP) is a Layer-3 (network) protocol that provides addressing and
control information the SSR needs to route data packets in a network. The SSR supports IP
routing as specified in RFC 1812. (IP is often referred to as TCP/IP.)
Acting as a connectionless packet-delivery service, IP does not provide a dedicated link
between computers. Instead, IP provides dynamic routing by using best-effort delivery to
route packets through any number of paths in the network. This dynamic routing is
enabled through the routing table IP maintains. This table consists of pairs of destination
addresses and next hop addresses. IP uses the table to determine that to get to a specific
network address its next hop should be to a particular interface.
Suppose you have two hosts connected together with a router as shown in the following
figure. Host A, which is on network 10.0.0.0, has an IP address of 10.0.0.2. Host B, which is
CoreWatch User's Manual
Configuring IP
Interfaces for the
Chapter 8
SSR
107
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