Ip Interface Parameters - Layer 3 Switches - Foundry Networks Switch and Router Installation And Configuration Manual

Foundry Switch and Router Installation and Configuration Guide
IP Interface Parameters – Layer 3 Switches
Table 15.2 lists the interface-level IP parameters for Layer 3 Switches.
Parameter Description
IP state The Internet Protocol, version 4
IP address A Layer 3 network interface address
Note: Layer 2 Switches have a single IP address
used for management access to the entire device.
Layer 3 Switches have separate IP addresses on
individual interfaces.
Encapsulation The format of the packets in which the router
type encapsulates IP datagrams. The encapsulation
format can be one of the following:
•
•
Maximum The maximum length (number of bytes) of an
Transmission encapsulated IP datagram the router can forward.
Unit (MTU)
Metric A numeric cost the router adds to RIP routes learned
on the interface. This parameter applies only to RIP
routes.
Directed Locally overrides the global setting. See Table 15.1
broadcast on page 15-10.
forwarding
ICMP Router Locally overrides the global IRDP settings. See Table
Discovery 15.1 on page 15-10.
Protocol (IRDP)
DHCP gateway The router can assist DHCP/BootP Discovery packets
stamp from one sub-net to reach DHCP/BootP servers on a
different sub-net by placing the IP address of the
router interface that receives the request in the
request packet's Gateway field.
You can override the default and specify the IP
address to use for the Gateway field in the packets.
Note: UDP broadcast forwarding for client DHCP/
BootP requests (bootpc) must be enabled and you
must configure an IP helper address (the server's IP
address or a directed broadcast to the server's sub-
net) on the port connected to the client.
15 - 14
Table 15.2: IP Interface Parameters – Layer 3 Switches
Ethernet II
SNAP
Default See page...
Enabled n/a
Note: You cannot
disable IP.
a 15-19
None configured
Ethernet II 15-25
1500 for Ethernet II 15-26
encapsulated packets
1492 for SNAP
encapsulated packets
1 (one) 16-5
Disabled 15-35
Disabled 15-67
The lowest-numbered 15-74
IP address on the
interface that receives
the request
December 2000