Avaya CMC1, Процедуры обслуживания

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Troubleshooting
Troubleshooting ATM
Maintenance Procedures 197
December 2003
Figure 54: List sys-link screen
Ensure that the fields have the following indicated values.
2 Enter show switch circuit
3 Enter table on the A500 console. Figure 55, A500: show switch circuit screen, on page 197
shows the screen output.
Figure 55: A500: show switch circuit screen
• The pp VBRnrt (Variable Bit Rate) virtual circuits between A500 ports A1.1 (PPN) and A1.2
(PN) are used for signaling between the PPN and each PN.
• These are established once upon initialization under control of S8700 Multi-Connect call
processing. They represent the ATM Control Link (ACL) and Expansion Archangel Link (EAL).
• VBRnrt virtual circuits are also be used for ISDN channels between S8700 Multi-Connect PNs.
• Other VBRnrt virtual circuits may exist between A500 ports that are not associated with S8700
Multi-Connect PNs. A common use of VBRnrt circuits is multimedia and video-conferencing
systems.
Link Type/
Channel
One PACL to each TN230X in either a PPN or a PN, and
one EAL to each TN230X in a PN.
State up
list sys-link
SYSTEM LINKS INFORMATION
Location Link Type/ State Current Faulted Last Fault
Channel Path Path Recorded
02A0101 EAL up present present 12/06/1997 16:20
01B0202 PACL up present present 12/06/1997 16:17
02A0102 PACL up present present 12/06/1997 16:20
A500:show switch circuit
_______________________________________________________
| Input | Output | Connection |
| port vpi vci| port vpi vci| type class parameters |
|______________|______________|_________________________|
A1.1 0 5 Self 0 1 pp UBR ppd on
A1.1 0 32 A1.2 0 32 pp VBRnrt pcr=5729 /scr=5729 /mbs=17187
A1.1 0 35 A1.2 0 35 pmp CBR pcr=173
A1.2 0 5 Self 0 2 pp UBR ppd on
A1.2 0 32 A1.1 0 32 pp VBRnrt pcr=5729 /scr=5729 /mbs=17187
A1.2 0 34 A1.1 0 34 pmp CBR pcr=173
Self 0 1 A1.1 0 5 pp UBR ppd on
Self 0 2 A1.2 0 5 pp UBR ppd on
_________________________________________________________