Alcatel-Lucent 7750 Configuration Manual page 364

Interfaces
interfaces preconfigured class and weight. As new links are added to a LAG, existing SAPs subscribers
are not impacted.
weighted auto-rebalance — SAPs/subscribers/interfaces are distributed amongst LAG links based on
SAPs/subscribers/interfaces preconfigured class and weight. As new links are added to a LAG, existing
SAPs are rebalanced automatically.
mac
Syntax mac ieee-address
no mac
Context config>port>ethernet
config>port>sonet-sdh>path
config>port>tdm>ds1>channel-group
config>port>tdm>ds3
config>port>tdm>e1>channel-group
config>port>tdm>e3
config>lag
config>eth-tunnel
Description
This command assigns a specific MAC address to an Ethernet port, Link Aggregation Group (LAG), Ether-
net tunnel, or BCP-enabled port or sub-port.
Only one MAC address can be assigned to a port. When multiple mac commands are entered, the last com-
mand overwrites the previous command. When the command is issued while the port is operational, IP will
issue an ARP, if appropriate, and BPDU's are sent with the new MAC address.
The no form of this command returns the MAC address to the default value.
Default A default MAC address is assigned by the system from the chassis MAC address pool.
Parameters ieee-address — Specifies the 48-bit MAC address in the form aa:bb:cc:dd:ee:ff 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.
mtu
Syntax mtu mtu-bytes
no mtu
Context config>port>ethernet
config>port>sonet-sdh>path
config>port>tdm>ds1>channel-group
config>port>tdm>ds3
config>port>tdm>e1>channel-group
config>port>tdm>e3
Description This command configures the maximum payload MTU size for an Ethernet port or PPP-enabled port or sub-
port and Frame Relay-enabled port or subport. The Ethernet port level MTU parameter indirectly defines the
Page 364 7750 SR Interface Configuration Guide