Technical Documentation

show chassis sibs

Syntax

show chassis sibs

Syntax (TX Matrix Router)

show chassis sibs <lcc number | scc>

Syntax (TX Matrix Plus Router)

show chassis sibs <lcc number | sfc number>

Release Information

Command introduced before Junos OS Release 7.4.

sfc option introduced for the TX Matrix Plus router in Junos OS Release 9.6.

Description

(M320 and T Series routers only) Display Switch Interface Boards (SIBs) status information.

Options

none

(TX Matrix and TX Matrix Plus routers only) On a TX Matrix router, display the SIB status for the TX Matrix router and its attached T640 routers. On a TX Matrix Plus router, display the SIB status for the TX Matrix Plus router and its attached T1600 routers.

lcc number

(TX Matrix and TX Matrix Plus router only) (Optional) On a TX Matrix router, display SIB status information for a specified T640 router (or line-card chassis) that is connected to the TX Matrix router. On a TX Matrix Plus router, display SIB status information for a specified T1600 router that is connected to the TX Matrix Plus router. Replace number with a value from 0 through 3.

scc

(TX Matrix routers only) (Optional) Display SIB status information for the TX Matrix router (or switch-card chassis).

sfc number

(TX Matrix Plus routers only) (Optional) Display SIB status information for the TX Matrix Plus router (or switch-fabric chassis). Replace number with 0.

Required Privilege Level

view

Related Topics

List of Sample Output

show chassis sibs (T640 Router)
show chassis sibs (TX Matrix Router)
show chassis sibs (T1600 Router)
show chassis sibs (TX Matrix Plus Router)
show chassis sibs sfc (TX Matrix Plus Router)
show chassis sibs lcc (TX Matrix Plus Router)

Output Fields

Table 1 lists the output fields for the show chassis sibs command. Output fields are listed in the approximate order in which they appear.

Table 1: show chassis sibs Output Fields

Field Name

Field Description

Slot

SIB slot number.

Type

(TX Matrix Plus router only) SIB type.

Uptime

How long the SIB has been up and running.

State

SIB status:

  • Activating—Transitional state when the SIB is coming online.
  • Deactivating—Transitional state when the SIB is going offline.
  • Connected—SIBs on a T640 router are connected and trained but are either not online or are spare, because the plane on the TX Matrix router (or switch-card chassis) or the TX Matrix Plus router (or switch-fabric chassis) is still offline.
  • Disconnected—If a SIB on the TX Matrix router (or switch-card chassis) or TX Matrix Plus router (or switch-fabric chassis) goes offline, then the SIBs on all other T640 routers of the same plane are disconnected.
  • Online—SIB is operational and running.
  • Offline—SIB is powered down.
  • Spare—SIB is redundant and will move to active state if one of the working SIBs fails to pass traffic.
  • Empty—No SIB is present.
  • Fault—SIB is in an alarmed state in which the SIB’s plane is not operational for one of the following reasons:
    • Onboard fabric ASIC is not operational.
    • Fiber-optic connector faults.
    • FPC connector faults.
    • SIB midplane connector faults.
  • Check—SIB is in the Check state because of the following reasons:
    • SIB is not inserted properly.
    • Destination errors are detected on the SIB. In this case, the Packet Forwarding Engine stops using the SIB to send traffic to the affected destination Packet Forwarding Engine.
    • Link errors are detected on the channel between the SIB and a Packet Forwarding Engine. Link errors can be detected at initialization time or runtime:
      • Link errors caused by a link training failure at initialization time—The Packet Forwarding Engine does not use the SIB to send traffic. The show chassis fabric fpcs command shows Plane disabled as status for this link.
      • Link errors caused by CRC errors detected at runtime—The Packet Forwarding Engine continues to use the SIB to send traffic. The show chassis fabric fpcs command shows Link error as the status for this link.

    Note: For SIBs in the Check state, the output displays some additional information:

    • In Junos OS Release 9.6 and later, the Check state message shows the number of Packet Forwarding Engines in the plane having destination errors. For example, Check (10 destination errors) indicates 10 Packet Fowarding Engines having destination errors. If there are no destination errors, and if the SIB transitions to the Check state because of link errors only, the Check state message shows Check (0 destination errors).
    • In Junos OS Release 9.5 and earlier, the Check state message shows Check (destination errors) if there are Packet Forwarding Engines with destination errors in this plane. However, it does not show the number of Packet Forwarding Engines having destination errors. If there are no destination errors and if the SIB transitions to the Check state because of link errors only, the Check state message shows Check (no destination errors).

    If the SIB is in a Check state, because of destination errors, the CLI displays an additional line in the output, use "show chassis fabric fpcs" and "show chassis fabric sibs" for more details.

  • SFC Error—If an F13 SIB on the TX Matrix Plus router (SFC) transitions to the Fault state (for instance, because of link errors), and then if an LCC SIB (connected to the F13 SIB) comes online, the LCC SIB transitions to the SFC Error state. This state indicates that the F13 SIB to which the LCC SIB is connected has errors.

    Note: The Connected, Disconnected, and SFC Error states are only applicable to the SIBs on an LCC.

Sample Output

show chassis sibs (T640 Router)

user@host> show chassis sibs 
Slot  State                            Uptime
 0    Empty
 1    Empty
 2    Check (21 destination errors)    1 day, 1 hour, 32 minutes, 55 seconds
 3    Check (0 destination errors)     1 day, 1 hour, 32 minutes, 45 seconds
 4    Empty

use "show chassis fabric fpcs" and "show chassis fabric sibs" for more details

show chassis sibs (TX Matrix Router)

user@host> show chassis sibs 
scc-re0:
--------------------------------------------------------------------------
Slot  State               Uptime
 0    Empty           
 1    Empty           
 2    Empty           
 3    Offline         
 4    Online             7 days, 21 hours, 50 minutes, 4 seconds
lcc0-re0:
--------------------------------------------------------------------------
Slot  State                            Uptime
 0    Empty
 1    Empty
 2    Check (21 destination errors)    1 day, 1 hour, 32 minutes, 55 seconds
 3    Check (0 destination errors)     1 day, 1 hour, 32 minutes, 45 seconds
 4    Empty

use "show chassis fabric fpcs" and "show chassis fabric sibs" for more details

show chassis sibs (T1600 Router)

user@host> show chassis sibs 
Slot   Slot  State                            Uptime
  0    Check (destination errors)       2 hours, 23 minutes, 2 seconds
  1    Empty
  2    Check (destination errors)       2 hours, 23 minutes, 3 seconds
  3    Check (destination errors)       2 hours, 23 minutes, 3 seconds
  4    Check (destination errors)       2 hours, 23 minutes, 3 seconds
  
 use "show chassis fabric fpcs" and "show chassis fabric sibs" for more details

show chassis sibs (TX Matrix Plus Router)

user@host> show chassis sibs 
sfc0-re0:
--------------------------------------------------------------------------
Slot  State              Type          Uptime
 0    Online             SIB F13        4 hours, 1 minute, 56 seconds
 1    Online             SIB F13        4 hours, 1 minute, 39 seconds
 2    Invalid         
 3    Empty           
 4    Empty           
 5    Invalid         
 6    Empty           
 7    Empty           
 8    Empty           
 9    Empty           
10    Invalid         
11    Empty           
12    Empty           
13    Invalid         
14    Invalid         
15    Invalid         
0/0   Online             SIB F2S        4 hours, 2 minutes, 17 seconds
0/2   Online             SIB F2S        4 hours, 2 minutes, 15 seconds
0/4   Online             SIB F2S        4 hours, 2 minutes, 14 seconds
0/6   Online             SIB F2S        4 hours, 2 minutes, 13 seconds
1/0   Online             SIB F2S        4 hours, 2 minutes, 25 seconds
1/2   Online             SIB F2S        4 hours, 2 minutes, 24 seconds
1/4   Online             SIB F2S        4 hours, 2 minutes, 23 seconds
1/6   Online             SIB F2S        4 hours, 2 minutes, 22 seconds
2/0   Online             SIB F2S        4 hours, 2 minutes, 20 seconds
2/2   Online             SIB F2S        4 hours, 2 minutes, 19 seconds
2/4   Online             SIB F2S        4 hours, 2 minutes, 18 seconds
2/6   Empty           
3/0   Empty           
3/2   Empty           
3/4   Empty           
3/6   Empty           
4/0   Empty           
4/2   Empty           
4/4   Empty           
4/6   Empty           

lcc0-re0:
--------------------------------------------------------------------------
Slot  State                             Slot  State                            Uptime
  0    Check (destination errors)       2 hours, 23 minutes, 2 seconds
  1    Empty
  2    Check (destination errors)       2 hours, 23 minutes, 3 seconds
  3    Check (destination errors)       2 hours, 23 minutes, 3 seconds
  4    Check (destination errors)       2 hours, 23 minutes, 3 seconds
  
 use "show chassis fabric fpcs" and "show chassis fabric sibs" for more details

show chassis sibs sfc (TX Matrix Plus Router)

user@host> show chassis sibs sfc 0
sfc0-re0:
--------------------------------------------------------------------------
Slot  State              Type          Uptime
 0    Online             SIB F13        4 hours, 15 minutes, 29 seconds
 1    Online             SIB F13        4 hours, 15 minutes, 12 seconds
 2    Invalid         
 3    Empty           
 4    Empty           
 5    Invalid         
 6    Empty           
 7    Empty           
 8    Empty           
 9    Empty           
10    Invalid         
11    Empty           
12    Empty           
13    Invalid         
14    Invalid         
15    Invalid         
0/0   Online             SIB F2S        4 hours, 15 minutes, 50 seconds
0/2   Online             SIB F2S        4 hours, 15 minutes, 48 seconds
0/4   Online             SIB F2S        4 hours, 15 minutes, 47 seconds
0/6   Online             SIB F2S        4 hours, 15 minutes, 46 seconds
1/0   Online             SIB F2S        4 hours, 15 minutes, 58 seconds
1/2   Online             SIB F2S        4 hours, 15 minutes, 57 seconds
1/4   Online             SIB F2S        4 hours, 15 minutes, 56 seconds
1/6   Online             SIB F2S        4 hours, 15 minutes, 55 seconds
2/0   Online             SIB F2S        4 hours, 15 minutes, 53 seconds
2/2   Online             SIB F2S        4 hours, 15 minutes, 52 seconds
2/4   Online             SIB F2S        4 hours, 15 minutes, 51 seconds
2/6   Empty           
3/0   Empty           
3/2   Empty           
3/4   Empty           
3/6   Empty           
4/0   Empty           
4/2   Empty           
4/4   Empty           
4/6   Empty

show chassis sibs lcc (TX Matrix Plus Router)

user@host> show chassis sibs lcc 0
lcc0-re0:
--------------------------------------------------------------------------
Slot  State               Uptime
 0    SFC error          3 seconds 
 1    Online             1 hour, 19 minutes, 6 seconds
 2    Empty           
 3    Online             1 hour, 18 minutes, 18 seconds
 4    Online             1 hour, 18 minutes, 3 seconds

Published: 2010-07-13

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