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Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter4 Configuring VISM Features
Configuring Additional VISM Features
Additional SPVC Connection Management Capabilities
Use the PXM1E or the PXM 45 card in combination with the VISM-PR card in an MGX 8000 Series
switch chassis to specify a connection up or down. Specifying a connect ion up allo ws you to direc t traff ic
to the specified connection. Specifying a connection down allows you to prevent traffic from being
directed to a specified connection. Use the upcon and dncon commands to use this feature.
Note This feature requires you to use a PXM1E or PXM45 in your M GX 80 00 Ser ies sw itch ch ass is.
192 T1/248 E1 DS0 Support with High Complexity Codecs on VISM-PR
VISM-PR T1 lines support up to 192 DS0 channels and VISM-PR E1 line s supp ort up to 2 48 DS0
channels, with clear channel and the following codec types:
•G.711
•G.726
•G.729a
•G.729ab
Table 4 -3 describes the VISM/VISM-PR DS0 density when the cards are used in combination with clear
channel and the supported codecs.
Channel Alarm Enhancement
The channel alarm enhancement feature uses the modified dspconcnt command, which allows you to
view the channel status bit map data.
VISM TDM Line Statistics Collection
This release allows you to configure VISM to collect Time Div ision Multiplex ( TDM) line statistics. U se
the dspalmcnt command to collect and display TDM line statistics. Use the cnfalmcnt command to
configure the thresholds for TDM line statistics.
Table11 VISM/VISM-PR DS0 Density with Codec Support
Codec
VISM VISM-PR
T1 E1 T1 E1
G.711 192 248 192 248
G.723.1 — — 144 144
G.726 145 145 192 248
G.729a/ab 145 145 192 248
Clear channel 192 248 192 248