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Cisco 2811 RAS PVDM2-36DM dsp problem?

dear colleagues,

I have configured Cisco 2811 RAS with E1 for dial in access for several remote locations which have analog modems.

When I test with test server (with modem) I can access all resources in my LAN, but when several remote locations start to connect i get following error:

Jul 13 08:43:58: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 11 is not available
Jul 13 08:43:58: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jul 13 08:43:58: ISDN  EVENTd: cc_clear_free_list freeing 0x45514838
Jul 13 08:43:58: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 12 is not available
Jul 13 08:43:58: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jul 13 08:43:58: ISDN  EVENTd: cc_clear_free_list freeing 0x45514838
Jul 13 08:43:58: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 11 is not available
Jul 13 08:43:58: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jul 13 08:43:58: ISDN  EVENTd: cc_clear_free_list freeing 0x45514838
Jul 13 08:43:58: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 13 is not available
Jul 13 08:43:58: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jul 13 08:43:58: ISDN  EVENTd: cc_clear_free_list freeing 0x45514838
Jul 13 08:43:58: %LINK-5-CHANGED: Interface Async0/356, changed state to reset

google told me that this is dsp resource problem but I don't understand what to do. please be so kind and help me.

attachments:

1.) sh-stuff.txt (sh version, sh modem ver, sh diag, sh controllers e1 1/0, sh isdn service)

2.) running-config

Everyone's tags (8)
9 REPLIES
Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

i forgot to say that I have PRI with 30+2 channels

also, when I try to ping connected user I get:

TTL expired in transit.

regards,

Valentin

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

You have created pri-group with first 10 timeslots (10 channels), but the other end requests 11th-13th timeslots (11th-13th channels). So first make sure how many and which timeslots (channels) are avialable for connection. Second make sure that both ends are configured the same way.

controller E1 1/0
  pri-group timeslots 1-10,16

I think it should be (if You get 30 channels from other end):

controller E1 1/0

  pri-group timeslots 1-31

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

Could you be so kind and tell me following:

I have configured

line 0/322 0/357

no flush-at-activation

login local

modem InOut

modem autoconfigure discovery

transport input all

transport output all

autoselect during-login

autoselect ppp

Should I put then 0/322 0/353 (322+31)?

kind regards,

Valentin

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htpvdm2.pdf    (4th page)

"line 322 357"

2811 ISR

In PVDM0 slot, first modem is at line 322

Your PVDM has 36 modems so last modem will be at 322 + 36 (-1) = 357

BR,

vj

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

-1 is because of D channel?

regards,

Valentin

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

Do not confuse PRI channels with PVDM modems in this case.

322 is 1st modem

323 is 2nd modem

324 is 3rd modem

...

356 is 35th modem

357 is 36th modem

It is numbering logic

Hall of Fame Super Gold

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

without opening zipfiles, which IOS are you using ?

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

routerX#sh ver

Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2)

I think it's latest.

regards

Community Member

Re: Cisco 2811 RAS PVDM2-36DM dsp problem?

we solved our problem with VPDN and Radius. it appeared that remote locations don't have static IP address but DHCP. so, we put remote locations and wanted IP addresses into radius and now everything works like a charm

thanx to all for suggestions!

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