When Parameter Changes Take Effect; Ip Global Parameters - Dell PowerConnect B-RX Configuration Manual

When parameter changes take effect

Most IP parameters described in this chapter are dynamic. They take effect immediately, as soon
as you enter the CLI command. You can verify that a dynamic change has taken effect by
displaying the running configuration. To display the running configuration, enter the show
running-config or write terminal command at any CLI prompt.
To save a configuration change permanently so that the change remains in effect following a
system reset or software reload, save the change to the startup configuration file. Enter the write
memory command from the Privileged EXEC level of any configuration level of the CLI.
Changes to memory allocation require you to reload the software after you save the changes to the
startup configuration file. When reloading the software is required to complete a configuration
change, the procedure that describes the configuration change includes a step for reloading the
software.

IP global parameters

Table 43
configuration information.
TABLE 43
IP global parameters
Parameter Description
IP state The Internet Protocol, version 4
IP address and mask Format for displaying an IP address and its network mask
notation information. You can enable one of the following:
•
Class-based format; example: 192.168.1.1 255.255.255.0
•
Classless Interdomain Routing (CIDR) format; example:
192.168.1.1/24
Router ID The value that routers use to identify themselves to other routers
when exchanging route information. OSPF and BGP4 use router
IDs to identify routers. RIP does not use the router ID.
IP Maximum The maximum length an Ethernet packet can be without being
Transmission Unit fragmented.
(MTU)
Address Resolution A standard IP mechanism that routers use to learn the Media
Protocol (ARP) Access Control (MAC) address of a device on the network. The
router sends the IP address of a device in the ARP request and
receives the device's MAC address in an ARP reply.
BigIron RX Series Configuration Guide
53-1002253-01
lists the IP global parameters for the device, their default values, and where to find
Basic IP parameters and defaults
Default
Enabled
NOTE: You cannot disable
IP.
Class-based
NOTE: Changing this
parameter affects
the display of IP
addresses, but you
can enter addresses
in either format
regardless of the
display setting.
The IP address configured on
the lowest-numbered
loopback interface.
If no loopback interface is
configured, then the
lowest-numbered IP address
configured on the device.
1500 bytes for Ethernet II
encapsulation
1492 bytes for SNAP
encapsulation
Enabled
7
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