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208967-B 1-1
Chapter 1
IP Routing and ARP Commands
This chapter describes the Run-Time CLI commands that are used to configure
layer 3 (routing) functions in the Passport 8000 Series switch. The chapter
includes sections about the following command groups used to configure routing
characteristics:
• IP Routing Commands
• IP ARP Commands
IP Routing Commands
The general IP routing commands allow you to enable and disable IP forwarding
(routing) on the switch, ports, and/or VLAN.
config ip Commands
The general config ip commands take the following syntax and format:
config ip
followed by:
info Displays current default time-to-live characteristics
(Figure 1-1
).
default-ttl <seconds> Sets the default time to live (ttl) value for a routed packet.
It is the maximum number of seconds before a packet is
discarded.
• <seconds> is a number between 1 and 255. The
default value of 255 is inserted in the ttl field
whenever one is not supplied in the datagram header.
cli.book Page1 Wednesday,April19, 2000 3:14PM