Chennalized E1 configuration Help

[saibaldg]

Hi

I am novice in cisco E1 configuration. I need help to configur my 2611 router. Router is having one ethernet port and one Chennalized E1( NM-1CE1B=)network module.
I need to know how to configur chennalized e1 in 2611 router. If you have sample configuration it will be help full for me to understand.

Advance Thanks...
saibal

 

[marks66]

I assume the channelised E1 is a primary rate ISDN.!
Here are some configs, the HUB router is used to provide dial in for our remote sites, for when the serial leased line fails. This config provide IP and IPX traffic, using OSPF on the IP side and IPX/RIP on the novell.

HUB / MAIN SITE ROUTER
hostname rtr-sot-isdn-fr-17
This command create serial interfaces
controller E1 1/0
pri-group timeslots 1-30

routers we accept calls from
username rtr-crh-cr-1 password 7 fsdgdsfgsdfg
username rtr-ho-cr-129 password 7 sdfgsdgsdfg
username rtr-ayl-cr-1 password 7 sdfgsgsdg
username rtr-gld-cr-1 password 7 sfgsdfgsdg
username rtr-cs-cr-1 password 7 0sdfgsdfgsdf
username bat1_3620 password 7 sdfgsdfgsdfg
username rtr-ws-cr-129 password 7 sdfgsdfgsdfg
username last privilege 15 password 7 sfdgsdfgsdf
username rtr-he-dr-65 password 7 sdfgsgsdfg
username rtr-nw-dr-1 password 7 0sdfgsdfgsdfg
!


dialer commands have to be on this interface, others are data channels only
interface Serial1/0:15
description ISDN BACKUP No 0xxxxxxxxxx
ip address xxx.xxx.23.17 255.255.255.240
no ip directed-broadcast
encapsulation ppp
ip ospf network point-to-multipoint
dialer idle-timeout 10000
dialer map ip xxx.xxx.23.18 name rtr-crh-cr-1 broadcast
dialer map ip xxx.xxx.23.19 name rtr-ho-cr-129 broadcast
dialer map ip xxx.xxx.23.20 name rtr-ws-cr-129 broadcast
dialer map ip xxx.xxx.23.21 name rtr-ayl-cr-1 broadcast
dialer map ip xxx.xxx.23.22 name rtr-gld-cr-1 broadcast
dialer map ip xxx.xxx.23.23 name rtr-cs-cr-1 broadcast
dialer map ip xxx.xxx.23.24 name bat1_3620 broadcast
dialer map ip xxx.xxx.23.25 name rtr-he-dr-65 broadcast
dialer map ipx xx0016.0050.3edb.1ce0 name rtr-he-dr-65 broadcast
dialer map ip 164.137.23.26 name rtr-nw-dr-1 broadcast
dialer map ipx xx0016.0004.4d84.f620 name rtr-nw-dr-1 broadcast
dialer-group 1
ipx network 230016
isdn switch-type primary-net5
fair-queue 64 256 0
ppp authentication chap
ppp multilink

dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit

SPOKE / REMOTE SITE ROUTER

hostname rtr-ho-cr-129
routers we will dial
username rtr-sot-isdn-fr-17 password 7 szdgsdgsdfg
leased line uses BRI0/0 for backup
interface Serial0/0
description Horsley to Globe House
backup delay 3 60
backup interface BRI0/0
ip address xxx.xxx.24.6 255.255.255.252
ip accounting output-packets
no logging event subif-link-status
bandwidth 2048
ipx delay 2
ipx network 240004

ISDN interface we use to dial HUB router
interface BRI0/0
description Horsley Managment Training Centre backup ISDN
ip address xxx.xxx.23.19 255.255.255.240
encapsulation ppp
ip ospf network point-to-multipoint
no logging event subif-link-status
ipx network 230016
dialer map ip xxx.xxx.23.17 name rtr-sot-isdn-fr-17 broadcast 02xxxxxxxx (ISDN Phone Number)
dialer-group 1
ppp authentication chap
hold-queue 75 in

dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit

 

[Guest_imported]

thanks for your reply. This has helped me to understand E1 configuration for ISDN PRI circuit.
But I need chennalized E1 on a non isdn link.
I will connect 29 remote office through 64k leased line with a centrel 2611 router through chennalized E1 link. Routing protocals could be EIGRP or Static. If you or Any body have this configuration I need a sample copy to understnad how to configur no isdn chennalized E1 link. Also if any body having Chennalized E1 ( 30 Channel) group configuration that will be very much help full for me.

I am novice in chennalized E1 configuration.

Advance Thanks and Regards

saibal

 

[Guest_imported]

Now is better explained problem
after # sign is my comment, no need to type
on enable prompt type :
conf term
contr e1 1/0 # slot number/port number
framing crc4 # ask local ptt ,other option is nocrc4
linecode hdb3
channel-group 0
timeslots 0
timeslots 1 #and on up to 15, skip timeslot 16, unusable )
timeslot 17 # up to 31
interface serial 1/0:0 #assign virtual interface to group 0
ip address 1.1.1.1 m.m.m.m # give ip add if you want from # routers local network, or use clause unnumbered eth 0/0
# repeat above for each created channel-group
exit
# add desired routes to remote offices
ip route 1.1.1.1 m.m.m.m serial 1/0:0
ip route 1.1.1.2 m.m.m.m serial 1/0:1 # and all others
end
copy runn stu
I think you need assistance from local ptt to configure so called semipermanent connection from each office to your e1

 

[saibaldg]

Thanks for your reply.
This is somthing intersting. I have few questions....
Q1> Can it be possible to connect 30 remote office in same channel group or i have to create channel group 0 to channel group 31 individualy
Q3> What is the relation between timesolt and channel group
Q4> in channel group 0 is it required time slot to be given indipendently like
channel group 0
timeslot 0 #is for intnterface Serial 1/0:0 channel group 0)
timeslot 1 #is for interface serial 1/1:0 (channel group 0)
.........2,3,4,...........
timeslot 20 #is for interface serial 1/20:0(channel group 0)
etc....
Q5> If i want to connect more then one 64k leased line (64+64=128k) from one remote office to central e1 router, what i have to do in this configuration.

I am novice... in e1 configuration....

Many many thanks and regards to every one

saibal

 

[Guest_imported]

How good is the question, so good is the answer.
I Understand you have 30 remote offices, meaning you have to make 29 separate routes to each of them.
This means you must have 29 separate "logical" interfaces.
The way to do it is to create 29 chane-groups, no matter that each group contains only one member ( timeslot)
Do not wory about creating 29 groups, it is only more writing, nothing else.
AQ2. chanel-group is cisco software name for group of 64 channels ( timeslots )
when you vreate chanel-gr nn, you assign to it one or more timeslots, but as you want to have 29 offices, you can not assign more than one timeslot to each group.
AQ4. NO, wrong
channel-group 0
timeslot 0
chanel-goup 1
timeslot 1
and up to 29
When it is created, cisco software will do other, providing you create interfaces:
interface serial 1/0:0
interface serial 1/0:1
mind 1/0 is for real port where e1 card is connected
after that, sintax is 1/0:0 automaticaly connects to chanel group 0
interface serial 1/0:1 connects chanel group 1
interface serial 1/0:29 connect chanel group 29

AQ5: create one channel-group with 2 timeslots
channel-group 29
timeslots 30,31
and ask PTT to connect that office on time slots 30 and 31
good luck.

 

[saibaldg]

Thank you.... Now I understand how to configur E1 link.

Regards

saibal