Troubleshooting
Troubleshooting ATM
196
Maintenance Procedures
December 2003
Figure 53: A500: show switch circuit table screen
•
The
pp UBR
virtual circuits between A500 ports
A1.1
(PPN) and
Self
(A500) and between
A1.2
(PN) and
Self
(A500) are ATM signaling channels between the port network and the
A500.
•
They are used to request connection setups and releases to other endpoints such as another port
network.
•
These are established by each TN230X when it comes up, independent of S8700 call processing.
•
Other UBR virtual circuits may exist between A500 ports that are not associated with S8700 port
networks and may be signaling channels for other applications (for example, data network traffic).
CaPro layer
Are control channels being established from the PPN to a PN?
Diagnostics
•
Do you get a dial tone from a set on the PN in question?
•
Can you ring a set on this PN dialing from the PPN, and vice versa?
Complete the following steps:
1
Enter list sys-link on the S8700 Multi-Connect SAT.
Figure 54, List sys-link screen,
shows the screen output.
A500:show switch circuit table
_______________________________________________________
| 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
_________________________________________________________
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...