Technical data

Step 5—Configuring the Serial Channels to Let Modem Calls Come in
Dial Solutions Quick Configuration Guide
2-16
• Enter the show isdn status command to view the ISDN layer information. This output shows that
layer 1 and layer 2 are enabled and active. Layer 3 shows the number of active ISDN calls, which
there are none currently.
hq-sanjose# show isdn status
The current ISDN Switchtype = primary-ni
ISDN Serial0:23 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
Total Allocated ISDN CCBs = 0
ISDN Serial1:23 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 1 CCBs = 0
Total Allocated ISDN CCBs = 0
ISDN Serial2:23 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 2 CCBs = 0
Total Allocated ISDN CCBs = 0
ISDN Serial3:23 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 3 CCBs = 0
Total Allocated ISDN CCBs = 0
Note the following information:
— Layer 1 Status should be “Active.”
— Layer 2 Status should be “Multiple_Frame_Established.” (It might take several seconds for
Layer 2 status to appear.)
— Layer 3 Status should be “No Active Layer 3 Call(s).”
• Enter the show isdn service command to determine which channels have active calls and if all
the individual channels are in service. In this example notice there are 8 serial channels under
each D channel that calls cannot use. T1 lines are used in this case study (not E1).
hq-sanjose# show isdn service
PRI Channel Statistics:
ISDN Se0:23, Channel (1-31)
Activated dsl 0
State (0=Idle 1=Propose 2=Busy 3=Reserved 4=Restart 5=Maint)
0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 3 3 3 3 3 3
Channel (1-31) Service (0=Inservice 1=Maint 2=Outofservice)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 2 2 2 2 2
ISDN Se1:23, Channel (1-31)