Specifications

6-15
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 6 Modem Management Operations
Gathering and Viewing Call Statistics
* 1/8 5 2 21 2 7 1 2 1 1019 2 28 2 159 1 0 0
1/9 3 1 10 1 8 1 2 1 939 2 22 2 191 2 0 0
1/10 1 0 29 3 9 2 1 0 918 2 28 2 194 2 0 0
1/11 2 0 27 2 9 2 4 3 981 2 27 2 174 2 0 0
* 1/12 7 2 21 2 10 2 5 4 966 2 24 2 182 2 0 0
1/13 6 2 21 2 10 2 1 0 977 2 32 3 168 1 0 0

Display a summary of the range of connect speeds. Specify the top speed of interest followed by a
0. This example displays the initial connect speeds in each direction (transmit and receive) for the
range of speeds that go up to 56K. No connections happened at 56000 bps. The transmit speed with
the highest hit counter is 48K (9161 hits). The receive-connect speeds are all zeros because V.90 is
a transmit only speed.
5300-NAS#show modem connect-speeds 56000 0
transmit connect speeds
Mdm 48000 49333 50000 50667 52000 53333 54000 54667 56000 TotCnt
Tot 9161 5047 1454 3291 813 1427 0 25 0 60012
Tot % 15 8 2 5 1 2 0 0 0
receive connect speeds
Mdm 48000 49333 50000 50667 52000 53333 54000 54667 56000 TotCnt
Tot 0 0 0 0 0 0 0 0 0 60012
Tot % 0 0 0 0 0 0 0 0 0

Inspect the range of speeds below 56000 bps (38667 to 46667). This is the distribution of speeds
of PCM users (KFlex users and V.90 users). Compare this output with the previous example. The
peak speed is at 48K, which had 9,161 hits—15% of all callers.
5300-NAS#show modem connect-speeds 46666 0
transmit connect speeds
Mdm 38667 40000 41333 42000 42667 44000 45333 46000 46667 TotCnt
Tot 349 192 700 221 780 2188 1123 804 693 60011
Tot % 0 0 1 0 1 3 1 1 1
receive connect speeds
Mdm 38667 40000 41333 42000 42667 44000 45333 46000 46667 TotCnt
Tot 0 0 0 0 0 0 0 0 0 60011
Tot % 0 0 0 0 0 0 0 0 0

Examine the DS0 timeslots on each T1 that are used to carry the modem calls. The following
example shows that the telco is distributing calls into this hunt group evenly across the T1s. There
are a total of 29 (20+9) DS0s currently active.
The high water mark reports the highest number of DS0s that were in use at one time. However, be
sure to inspect the entire dial pool. Entire T1s have been known to remain idle in some hunt groups.
5300-NAS#show controllers t1 call-counters
T1 0:
DS0's Active: 20
DS0's Active High Water Mark: 23
TimeSlot Type TotalCalls TotalDuration
1 pri 6536 3w1d
2 pri 6701 2w3d
3 pri 5789 2w0d
4 pri 5498 1w2d
5 pri 5497 3d02h
6 pri 5126 7w0d