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Using Continuity Test (COT)
Creating Authentication Accounts
You can create authentication accounts for other routers between the NAS and the HGW for VPDN.
On the NAS, an example is:
On the HGW, an example is:
Using Continuity Test (COT)
The COT subsystem supports the Continuity Test (COT), which is required by the SS7 network to
conduct loopback and tone check testing on the path before a circuit is established. Continuity testing
(COT) will detect any failure of DS0 channels. It is required for North American SS7 compliance.
Note
Configure
There are no configuration tasks.
Verify
Use the following commands to verify COT:
•
•
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Cisco AS5300 Universal Access Server Software Configuration Guide
username NAS password cisco
username HGW password cisco
vpdn enable
vpdn outgoing cisco.com NAS ip X.X.X.X
username NAS password cisco
username HGW password cisco
vpdn enable
vpdn incoming NAS HGW virtual-template 1
You must have installed MICA 2.6.1.0 portware, which supports the COT feature.
Display information about the COT DSP (Digital Signal Processor) configuration or current
status by entering the show cot dsp status or config command:
5300# show cot dsp status 1/1
Rx Freq 2010 Hx
Tx Freq 1780 Hx
Tx then Rx mode
in WaitRxOn state
5300# show cot dsp config 1/1
Rx Freq 2010 Hx
Tx Freq 1780 Hx
Tx then Rx mode
Timeout value:0
Display information about the COT request by entering the show cot request command:
5300# show cot request 1/1
00:19:29:COT Request@ 0x61064A20, CDB@ 0x60EBB48C, Params@0x61123DBC
00:19:29:
request type = COT_CHECK_TONE_ON
00:19:29:
shelf 0 slot 0 appl_no 1 ds0 1
00:19:29:
duration 100000 key FFF1 freqTx 1780 freqRx 2010
00:19:29:
state COT_WAIT_TD_ON_CT
00:19:29:
event_proc(0x6093B55C)
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