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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter7 Configuring Virtual Connections
Configuring Interface and Connection Snoopi ng
Example
The following example shows that ATM subinterface1/0/0.99 on the ATM switch router (HB-1) has
been deleted:
Switch(HB-1)# show interfaces atm 1/0/0
IF Status: UP Admin Status: up
Auto-config: disabled AutoCfgState: not applicable
IF-Side: Network IF-type: NNI
Uni-type: not applicable Uni-version: not applicable
ConfMaxVpiBits: 8 CurrMaxVpiBits: 8
ConfMaxVciBits: 14 CurrMaxVciBits: 14
Max-VP: 255 Max-VC: 16383
ConfMaxSvpcVpi: 255 CurrMaxSvpcVpi: 255
ConfMaxSvccVpi: 255 CurrMaxSvccVpi: 255
ConfMinSvccVci: 35 CurrMinSvccVci: 35
Svc Upc Intent: pass Signalling: Enabled
ATM Address for Soft VC: 47.0091.8100.0000.00e0.4fac.b401.4000.0c80.8000.00
Configured virtual links:
PVCLs SoftVCLs SVCLs TVCLs PVPLs SoftVPLs SVPLs Total-Cfgd Inst-Conns
4 0 0 0 0 0 0 4 3
Logical ports(VP-tunnels): 0
Input cells: 263843 Output cells: 273010
5 minute input rate: 0 bits/sec, 0 cells/sec
5 minute output rate: 0 bits/sec, 0 cells/sec
Input AAL5 pkts: 172265, Output AAL5 pkts: 176838, AAL5 crc errors: 0
Configuring Interface and Connection Snooping
Snooping allows the cells from all connections, in either receive or transmit direction, on a selected
physical port to be transparently mirrored to a snoop tes t port where an external ATM analyzer can be
attached. Unlike shared medium LANs, an ATM system requires a separate port to allow nonintrusive
traffic monitoring on a line.
Note Only cells that belong to existing connections are sent to the snoop test port. Any received cells that do
not belong to existing connections are not copied. In addition, the STS-3c (or other) overhead bytes
transmitted at the test port are not copies of the overhead bytes at the monitored port.