03-30-2004 07:58 AM - edited 03-13-2019 04:28 AM
We currently have two PRI lines with 24 channels on both. The Telco said they are set up so that when one is full the other will come up. We have configured the lines as following:
controller T1 5/0
framing esf
crc-threshold 320
linecode b8zs
pri-group timeslots 1-24 nfas_d none nfas_int 1 nfas_group 1
!
controller T1 5/1
framing esf
crc-threshold 320
linecode b8zs
pri-group timeslots 1-24 nfas_d primary nfas_int 0 nfas_group 1
gw-accounting aaa
method voip
attribute acct-session-id overloaded
!
The first line is completely full and the other is not coming up. The Telco assures us that they're side is setup correctly. Any ideas why the second would not be coming up?
Dave
03-30-2004 08:23 AM
What does your D channel configuration look like? Do you have "isdn nsf-service MEGACOM" under each D Channel? Are you having issues with inbound or outbound?
03-30-2004 08:50 AM
Sorry for being a novice, but how do i check the D channel config, and where do i find isdn nsf-service MEGACOM? We are having no issues with in or outbound voice, other than when the first channel fills up any other calls get droped. Thanks!
03-30-2004 10:12 AM
When you create a pri-group the D channel (serial interface) gets created. You should have an interface serial 5/1:23 (the d channel) and under here you will add the command "nsf-service MEGACOM". Also, post your entire config if you could.
03-30-2004 10:53 AM
Here is my config.
version 12.3
service timestamps debug datetime localtime
service timestamps log datetime
service password-encryption
!
hostname xxxxxxxx
!
boot-start-marker
boot-end-marker
!
enable secret 5 xxxxxxxxxxx
!
username xxxxxxx password 7 xxxxxxxxxxxxxxxx
clock timezone MDT -7
clock summer-time MDT recurring
voice-card 1
!
voice-card 2
!
voice-card 5
!
aaa new-model
!
!
aaa authentication login telnet group radius local
aaa accounting connection voip stop-only group radius
aaa session-id common
ip subnet-zero
!
!
!
isdn switch-type primary-ni
!
!
voice call send-alert
voice call carrier capacity active
voice rtp send-recv
!
!
!
!
!
!
controller T1 1/0
framing esf
crc-threshold 320
clock source internal
linecode b8zs
pri-group timeslots 1-24
!
controller T1 2/0
framing esf
crc-threshold 320
linecode b8zs
pri-group timeslots 1-24
!
controller T1 5/0
framing esf
crc-threshold 320
linecode b8zs
pri-group timeslots 1-24 nfas_d none nfas_int 1 nfas_group 1
!
controller T1 5/1
framing esf
crc-threshold 320
linecode b8zs
pri-group timeslots 1-24 nfas_d primary nfas_int 0 nfas_group 1
gw-accounting aaa
method voip
attribute acct-session-id overloaded
!
!
!
!
!
interface FastEthernet0/0
ip address 10.x.x.x 255.255.255.0
no ip redirects
no ip unreachables
no ip mroute-cache
load-interval 30
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.x.x.x 255.255.255.0
duplex auto
speed 100
no keepalive
!
interface Serial1/0:23
description connected to Multitech Gateway
no ip address
no logging event link-status
isdn switch-type primary-ni
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable
!
interface Serial2/0:23
description Connected to MITEL
no ip address
no logging event link-status
isdn switch-type primary-ni
isdn protocol-emulate network
isdn incoming-voice modem
isdn T310 30000
no cdp enable
!
interface Serial5/1:23
no ip address
no logging event link-status
isdn switch-type primary-ni
isdn incoming-voice modem
no cdp enable
!
router eigrp 1
network 10.x.x.x 0.0.0.255
auto-summary
!
!
!
!
control-plane
!
!
!
voice-port 1/0:23
!
voice-port 2/0:23
!
voice-port 5/1:23
!
voice-port 6/0/0
!
voice-port 6/0/1
!
!
!
!
dial-peer cor custom
!
!
!
dial-peer voice 999 pots
destination-pattern .T
direct-inward-dial
port 5/1:23
!
Here is a Sh isdn fnas group command
sh isdn nfas group 1
ISDN NFAS GROUP 1 ENTRIES:
The NFAS member is Serial5/0:23.
The primary D is Serial5/1:23.
There are 2 total nfas members.
There are 30 total available B channels.
The primary D-channel is DSL 3 in state IN SERVICE
There is currently no backup D configured.
The current active layer 2 DSL is 3.
Thanks.
Dave
03-30-2004 11:48 AM
First off, one thing I see is you Serial Interface configuration:
interface Serial5/1:23
no ip address
no logging event link-status
isdn switch-type primary-ni
isdn incoming-voice modem
no cdp enable
Primary-ni does not support NFAS, the switchtype must be 4ess so that is your first change. Secondly, you must add the command "isdn nsf-service MEGACOM".
So your serial would look like this:
interface Serial1/1:23
no ip address
no logging event link-status
isdn switch-type primary-4ess
isdn nsf-service MEGACOM
isdn incoming-voice voice
no cdp enable
Post back after you make those changes and let me know how it works out. Everything else looked good except for the D channel configuration (which is the most important part ;)
/andy - berbee
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: