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Router Interface Commands
Context
config>router>interface
Description
This command configures the interface as a loopback interface.
Default
Not enabled
lsr-load-balancing
Syntax
lsr-load-balancing hashing-algorithm
no lsr-load-balancing
Context
config>router>if
Description
This command specifies whether the IP header is used in the LAG and ECMP LSR hashing
algorithm. This is the per interface setting.
Default
no lsr-load-balancing
Parameters
lbl-only — Only the label is used in the hashing algorithm.
lbl-ip — The IP header is included in the hashing algorithm.
ip-only — the IP header is used exclusively in the hashing algorithm
eth-encap-ip — The hash algorithm parses down the label stack (up to 3 labels supported) and once
mac
Syntax
mac ieee-mac-addr
no mac
Context
config>router>interface
Description
This command assigns a specific MAC address to an IP interface. Only one MAC address can be
assigned to an IP interface. When multiple mac commands are entered, the last command overwrites
the previous command.
The no form of the command returns the MAC address of the IP interface to the default value.
Default
IP interface has a system-assigned MAC address.
Parameters
ieee-mac-addr — Specifies the 48-bit MAC address for the IP interface in the form aa:bb:cc:dd:ee:ff
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it hits the bottom, the stack assumes Ethernet II non-tagged header follows. At the expected
Ethertype offset location, algorithm checks whether the value present is IPv4/v6 (0x0800 0r
0x0866D). If the check passes, the hash algorithm checks the first nibble at the expected IP
header location for IPv4/IPv6 (0x0100/0x0110). If the secondary check passes, the hash is
performed using IP SA/DA fields in the expected IP header; otherwise (any of the check failed)
label-stack hash is performed.
or aa-bb-cc-dd-ee-ff, where aa, bb, cc, dd, ee and ff are hexadecimal numbers. Allowed values
are any non-broadcast, non-multicast MAC and non-IEEE reserved MAC addresses.
7750 SR OS Router Configuration Guide
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