ISDN PRI & BRI configration

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purohit_810 Wed, 07/09/2008 - 20:09
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in india we have E1 as a PRI follow the procedure.


Configuring Channelized E1 ISDN PRI

To configure ISDN PRI on a channelized E1 controller, use the following commands beginning in global configuration mode:



Command Purpose

Step 1

isdn switch-type switch-type

Selects a service provider switch type that accommodates PRI. (Refer to Table 17 for a list of supported switch type keywords.)

Step 2

controller e1 slot/port



or


controller e1 number

Defines the controller location in the Cisco 7200 or Cisco 7500 series router by slot and port number.


Defines the controller location in the Cisco 4000 series or the Cisco AS5200 universal access server by unit number.1

Step 3

framing crc4

Defines the framing characteristics as cyclic redundancy check 4 (CRC4).

Step 4

linecode hdb3

Defines the line code as high-density bipolar 3 (HDB3).

Step 5

pri-group [timeslots range]

Configures ISDN PRI.

.1 Controller numbers range 0 through 2 on the Cisco 4000 series and 1 to 2 on the Cisco AS5200 access server.



If you do not specify the time slots, the specified controller is configured for 30 B channels and 1 D channel. The B channel numbers range 1 to 31; channel 16 is the D channel for E1. Corresponding serial interfaces numbers range 0 to 30. In commands, the D channel is interface serial controller-number:15. For example, interface serial 0:15.


Table 17lists the keywords for the supported service provider switch types to be used in Step 1 above.



Dlink you have to configure simple dial-up connectivity with PRI.


Thanks,

Dharmesh Purohit

s-sheffield Tue, 08/12/2008 - 01:40
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Hi


here's what I do on central router,


set up usernames for chap authentication between central and remote sites


username xxxxxx password 0 xxxx


if you are using one of the newer E1 cards then you must add the "card-type" command to enable it.


set-up the switch-type


isdn switch-type primary-net5


then the time slots on the E1 int


controller E1 1/0

pri-group timeslots 1-31


set up the serial int


interface Serial1/0:15

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type primary-net5

fair-queue

ppp authentication chap

ppp multilink


then the dialers for each site


interface Dialer1

description Remote_Site_1

bandwidth 64

ip address nnn.nnn.nnn.nnn 255.255.255.252

encapsulation ppp

no ip mroute-cache

dialer pool 1

dialer remote-name xxxx

dialer idle-timeout 1800

dialer string xxxxxxxxxxxxxx

dialer-group 1

compress stac

no cdp enable

ppp authentication chap


repeat the dialer commands for the other remote sites you have


if you have a dynamic routing protocol then I would passive interface the dialers and add a static pointing to the far end of the dialer point to point link.


hope this helps


please rate if so


regards


Stu

Goutam Sanyal Tue, 08/12/2008 - 02:28
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Hi,


Proposed mini. Configuration for your PRI:


!

!

!

!

username [Your Remote office] password [your remote office]

!

!

controller E1 1/2 {assuming that controller port}

framing NO-CRC4

pri-group timeslots 1-31

description @@@@@ YOUR PRI NO. @@@@@

!

!

!

!

interface Serial1/2:15 {assuming that controller port}

description @@@@@ YOUR PRI NO @@@@@

no ip address

encapsulation ppp

no logging event link-status

dialer rotary-group 1

dialer-group 1

isdn switch-type primary-net5

no cdp enable

!

!

interface Dialer1

description

ip address {your ip address}

encapsulation ppp

no logging event link-status

dialer idle-timeout 300

dialer-group 1

ppp authentication chap


Additional:

1. Create an ACL to allow your interest ISDN traffic for.


The same you can configure to your branch office using BRI port.


Thanks

Goutam

pls rate if it helps u

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