• The network mask can be indicated as a slash (/) and number. For example, /8 indicates that the first 8 bits
of the mask are ones, and the corresponding bits of the address are network address.
Step 4 flow-control { bidirectional | egress | ingress }
Example:
RP/0/RSP0/CPU0:router(config-if)# flow control ingress
(Optional) Enables the sending and processing of flow control pause frames.
• egress—Enables the sending of flow control pause frames in egress.
• ingress—Enables the processing of received pause frames on ingress.
• bidirectional—Enables the sending of flow control pause frames in egress and the processing of received pause
frames on ingress.
Step 5 mtu bytes
Example:
RP/0/RSP0/CPU0:router(config-if)# mtu 1448
(Optional) Sets the MTU value for the interface.
• The default is 1514 bytes for normal frames and 1518 bytes for 802.1Q tagged frames.
• The range for Gigabit Ethernet and 10-Gigabit Ethernet mtu values is 64 bytes to 65535 bytes.
Step 6 mac-address value1.value2.value3
Example:
RP/0/RSP0/CPU0:router(config-if)# mac address 0001.2468.ABCD
(Optional) Sets the MAC layer address of the Management Ethernet interface.
• The values are the high, middle, and low 2 bytes, respectively, of the MAC address in hexadecimal. The range of
each 2-byte value is 0 to ffff.
Step 7 negotiation auto (on Gigabit Ethernet interfaces only)
Example:
RP/0/RSP0/CPU0:router(config-if)# negotiation auto
(Optional) Enables autonegotiation on a Gigabit Ethernet interface.
• Autonegotiation must be explicitly enabled on both ends of the connection, or speed and duplex settings must be
configured manually on both ends of the connection.
• If autonegotiation is enabled, any manually configured speed or duplex settings take precedence.
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
24
The Carrier Ethernet Model
Configuring a Gigabit Ethernet Interface