Step 2: Display the Status of the Controller Channelized OC-12 IQ Interface
Action
To display the status of the controller OC-12 IQ interface, use one or all of the following JUNOS CLI operational mode commands, depending on the level of channelization:
user@host>show interfacesinterface-type-fpc/pic/port
user@host>show interfacesinterface-type-fpc/pic/port:channel
user@host>show interfacesinterface-type-fpc/pic/port:channel:channel
user@host>show interfacesinterface-type-fpc/pic/port:channel:channel:channel
Sample Output 1
user@host> show interfaces coc12-0/0/0
Physical interface: coc12-0/0/0, Enabled, Physical link is Up
Interface index: 195, SNMP ifIndex: 82
Link-level type: Controller, Clocking: Internal, SONET mode, Speed: OC12,
Loopback: None, Parent: None
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
CoS queues : 4 supported
Last flapped : 2004-05-26 21:37:18 UTC (00:44:19 ago)
SONET alarms : None
SONET defects : None
Sample Output 2
user@host> show interfaces coc1-0/0/0:2
Physical interface: coc1-0/0/0:2, Enabled, Physical link is Up
Interface index: 198, SNMP ifIndex: 88
Link-level type: Controller, Clocking: Internal, SONET mode, Speed: 51840kbps,
Loopback: None, Parent: coc12-0/0/0 Interface index 195
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
CoS queues : 4 supported
Last flapped : 2004-05-26 22:19:18 UTC (00:07:06 ago)
SONET alarms : None
SONET defects : None
Sample Output 3
user@host> show interfaces ct3-0/0/0:5
Physical interface: ct3-0/0/0:5, Enabled, Physical link is Up
Interface index: 233, SNMP ifIndex: 169
Link-level type: Controller, Clocking: Internal, Speed: T3, Loopback: None,
Mode: C/Bit parity, Parent: coc1-0/0/0:5 Interface index 232
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
CoS queues : 4 supported
Last flapped : Never
Active alarms : None
Active defects : None
DS-3 BERT configuration:
BERT time period: 10 seconds, Elapsed: 0 seconds
Algorithm: 2^3 - 1, Pseudorandom (1), Induced error rate: 10e-0
Sample Output 4
user@host> show interfaces ct1-0/0/0:4:1
Physical interface: ct1-0/0/0:4:1, Enabled, Physical link is Up
Interface index: 230, SNMP ifIndex: 167
Link-level type: Controller, Clocking: Internal, Speed: T1, Loopback: None,
Framing: ESF, Parent: coc1-0/0/0:4 Interface index 229
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps
Link flags : None
CoS queues : 4 supported
Last flapped : Never
DS1 alarms : None
DS1 defects : None
SONET alarms : None
SONET defects : None
What It Means
The first line of the output shows the status of the link. If this line shows that the physical link is up, the physical link is healthy and can pass packets. If this line shows that the physical link is down, the physical link is unhealthy and cannot pass packets.
The controller interface is partitioned into other interface types and appears at the top of a specific level of channelization. For a visual representation of the controller interface at different levels of channelization, see Figure 23.
Each of the four examples of controller output is for a different level of channelization.
Sample output 1 for interface coc12-0/0/0 shows Parent: None, which indicates the top-most level of channelization.
Sample output 2 for interface coc1-0/0/0:2 shows Parent: coc12-0/0/0, which indicates that this interface is one level down from the top-most level, and is the OC1 controller for a first level of channelization.
Sample output 3 for interface ct3-0/0/0:5 shows Parent: coc1-0/0/0:5, which indicates that this interface is at the second level of channelization, and is a CT3 controller.
Sample output 4 for interface ct1-0/0/0:4:1 shows Parent: coc1-0/0/0:4:1, which indicates that this interface is at the third level of channelization, and is a CT1 controller.