R2511-HP MSR Router Series Interface Command Reference(V5)

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# Display brief information about interface cellular 0/0.
<Sysname> display interface cellular0/0 brief
The brief information of interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Main IP Description
Cellular0/0 UP UP(s) --
# Display brief information about all cellular interfaces in the DOWN state.
<Sysname> display interface cellular brief down
The brief information of interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Interface Link Cause
Cellular0/0 DOWN Not connected
# Display brief information about cellular interfaces, including their complete interface descriptions.
<Sysname> display interface cellular brief description
The brief information of interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Main IP Description
Cellular0/0 DOWN DOWN -- The interface for Mobile Network.
Table 18 Command output
Field Description
Cellular0/0 current state
Physical state of the cellular interface:
• DOWN (Administratively)—The cellular interface has been
shut down with the shutdown command.
• DOWN—The cellular interface is physically down because
no physical link is present or the physical link has failed.
• UP—The cellular interface is both administratively and
physically up.
Line protocol current state Link protocol state of the interface.
Description Description of the interface.
The Maximum Transmit Unit is 1448, Hold
timer is 10(sec)
The MTU of the cellular interface. The MTU defaults to 1500
bytes, and a packet larger than the MTU is fragmented before
it is sent. If fragmentation is not allowed, the packet will be
dropped.
Hold timer refers to the lifetime of a packet in a network. It is
the maximum amount of time that a packet can exist in the
network before being dropped. The hold timer of packets on
the cellular interface is set to 10 seconds.
Internet Address is 9.9.9.6/24 Primary IP address of the AM interface.
Link layer protocol is PPP Link layer protocol of the cellular interface.
LCP opened, IPCP opened A PPP connection is established successfully.