R2511-HP MSR Router Series Layer 2 - WAN Command Reference(V5)

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Field Descri
p
tion
Line protocol current state Link layer state of the interface: UP or DOWN.
Description Interface description.
The Maximum Transmit Unit Maximum transmission unit (MTU) of the interface.
Internet protocol processing
Processing state of the network layer protocol: enabled or
disabled.
IP Packet Frame Type Encapsulation format for IPv4 packets.
Hardware Address MAC address of the interface.
IPv6 Packet Frame Type Encapsulation format for IPv6 packets.
Output queue : (Urgent queue :
Size/Length/Discards)
Output queue : (Protocol queue :
Size/Length/Discards)
Output queue : (FIFO queuing :
Size/Length/Discards)
Packet statistics for the following output queues:
• Urgent queues.
• Protocol queues.
• FIFO queues.
The brief information of interface(s) under
route mode:
Brief information about Layer 3 interfaces.
Link: ADM - administratively down; Stby -
standby
Link layer state of the interface:
• ADM—The interface was shut down by the network
administrator. To recover its physical layer state, perform the
undo shutdown command.
• Stby—The interface is a standby interface. You can use the
display standby state command to check the corresponding
primary interface.
Protocol: (s) - spoofing
If the network layer protocol state of an interface is shown as UP,
but its link is an on-demand link or not present at all, its protocol
attribute includes the spoofing flag (an s in parentheses).
Interface Interface name.
Link
Physical link state of the interface:
• UP—The link is up.
• ADM—The link was administratively shut down. To recover its
physical state, execute the undo shutdown command.
Protocol Protocol connection state of the interface: UP(s).
Main IP Primary IP address.
Description Interface description.
Cause
Cause for a DOWN physical link:
• Administratively—The port was shut down with the shutdown
command. To restore the physical state of the interface, use the
undo shutdown command.
• Not connected—No physical connection exists.
encapsulation
Use encapsulation to specify an ATM AAL5 encapsulation type for a PVC.