Frame Relay bandwidth utilization [7:38423]

2002-03-15 Thread Anthony Toh

I am simulating a Frame Relay network using the Adtran Atlas 550 emulator. I
configure the emulator to provide a bandwidth of 1.544M bps, but I notice
that the bandwidth utilization is only about 78% on the average after full
burst at the beginning. I thought Frame Relay have very few overheads and
should run with very high bandwidth utilization. Appreciate if anyone can
consult me on this, thanks in advance.

Anthony.


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RE: Autonomous-system command [7:36067]

2002-02-21 Thread Anthony Toh

Hi, take a look at the protocol IGRP in the Cisco website. Maybe you can
have a better understanding of what an Autonomous system number is all about.

Anthony.


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RE: PVC status don't go down [7:35389]

2002-02-17 Thread Anthony Toh

I thks to all who come to advise, really appreciate.


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RE: PVC status don't go down [7:35389]

2002-02-15 Thread Anthony Toh

You see Eric, because I have an ISDN line as backup, that's why I need both
routers to see the PVC as down for any failure that happen on either side.
In that case, both routers can then activate the ISDN from either side and
use the backup route properly.
Now, with router B not able to see the frame relay route down, it keeps
sending data through the PVC.


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PVC status don't go down [7:35389]

2002-02-14 Thread Anthony Toh

Can anyone enlight me on this. I have 2 sites connected through a Frame
Relay network as below :

Router A  Frame Relay  Router B

My question is this

when interface of router A goes down, router B cannot notice it and the
whole PVC is not updated as down. But when the interfaces of both routers
are configured as subinterface, router B can then update router A's
interface as down and the whole PVC goes down. What is concept behind ? Why
doesn't the keepalive update both side properly ?

Anthony.


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Frame Relay too slow [7:31346]

2002-01-08 Thread Anthony Toh

This is a project I am doing. I am using 3 Cisco 2600 series routers to link
two sites and Adtran Atlas 550 to simulate a Frame Relay and a ISDN line (as
backup) network. The arrangement is this:

server PC--router--router--Frame Relay(Atlas)--router--client PC
  |ISDN___|

My problem is : When the client PC download file from the server PC, the
transmitting speed is very slow (about 15KB/sec). The transmit starts with a
speed of about 70KB/sec and then slowly drops to 15KB/sec. Appreciate for
any suggestion(s).

Anthony.


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RE: Frame Relay too slow [7:31346]

2002-01-08 Thread Anthony Toh

The placement of the ISDN line is not correct due to the aligment. Sorry for
that.

Anthony.


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RE: Need advice [7:30742]

2002-01-03 Thread Anthony Toh

As far as I come to know, yes. Hope you good luck.


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About Frame Relay [7:29383]

2001-12-17 Thread Anthony Toh

Does anyone know any websites that have good  simple
introduction/explaination on Frame Relay network ? Pls direct me.

What does it mean by Frame Relay is a layer 2 protocol (Data link layer)
and Frame Relay works on the layer 2 of the OSI model ?

Appreciate for any enlightenment.


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Re: IOS ver 12.1(7) or higher [7:28241]

2001-12-06 Thread Anthony Toh

Hi, thks for your reply.
But I have problem getting the SMARTnet program activate.
My product documentation cd don't work properly.
Wonder if you can help me get the IOS and send it to me ?

Anthony.


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IOS ver 12.1(7) or higher [7:28241]

2001-12-05 Thread Anthony Toh

Appreciate if anyone could show me where can I find  download the Cisco IOS
12.1(7) or higher release version.

I need it urgently for the use of configuring Dialer Watch feature.
I am using Cisco 2620 router.

Thks.


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RE: problem in router config ? [7:27288]

2001-12-02 Thread Anthony Toh

I thks to all of you for showing a helping hand.
Really appreciate.
Regrds.


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RE: Slimline 2 [7:27365]

2001-11-29 Thread Anthony Toh

Hi, is this Slimline 2 ISDN simulator a software ?
If it is, can you send one copy to me ?

[EMAIL PROTECTED]


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network simulator [7:27658]

2001-11-29 Thread Anthony Toh

Is there any router simulation software that I can configure to run in a
Frame Relay and ISDN network ?
Appreciate if anyone who knows can send me one.


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RE: Frame Relay/ISDN Question [7:27386]

2001-11-26 Thread Anthony Toh

Joshua, I would like to take a look at your router config at both ends.




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RE: Router Simulator [7:26886]

2001-11-25 Thread Anthony Toh

Hi, I can sent you a copy of it.
Just let me know your emaill address.




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problem in router config ? [7:27288]

2001-11-25 Thread Anthony Toh

Hi,I am trying to configure two 2600 series routers to run in a Frame Relay
network with an ISDN dial line as backup operation.
The Frame Relay configuration is working alright but the ISDN is not.

With reference to the figure below :

R1---S1Frame RelayS0---R2
 \---Bri0-ISDN--Bri0---/

The problem is with reference to R2 being the sender :

- if serial link of both routers are brought down, the ISDN will
activate.
- if only 1 serial link of either router is brought down, the ISDN will
not activate.

The same case happen with R1 being the sender.
I am struck with this for weeks, really appreciate very much if you can help
to chk my router config.

My configurations of both routers are as below :

R1 configuration :
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R1
!
username R2 password 0 cisco
!
no ip domain-lookup
!
isdn switch-type basic-ni
!
interface FastEthernet0/0
 ip address 172.16.32.1 255.255.240.0
!
interface Serial0/1
 backup delay 10 40
 backup interface Dialer1
 ip address 172.16.96.1 255.255.240.0
 encapsulation frame-relay
 cdp enable
 frame-relay map ip 172.16.96.1 17
!
interface BRI0/0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 dialer pool-member 5
 isdn switch-type basic-ni
 isdn spid1 51055512340001 5551234
 isdn spid2 51055512350001 5551235
!
interface Dialer1
 ip address 172.16.16.1 255.255.240.0
 no ip directed-broadcast
 encapsulation ppp
 dialer remote-name R1
 dialer idle-timeout 300
 dialer string 5554000
 dialer string 5554001
 dialer load-threshold 128 either
 dialer pool 5
 dialer-group 1
 ppp authentication chap
 ppp multilink
!
router igrp 100
 passive-interface Dialer1
 network 172.16.0.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.96.2
ip route 0.0.0.0 0.0.0.0 172.16.16.2 200
no ip http server
!
dialer-list 1 protocol ip permit
!
line con 0
 transport input none
line aux 0
line vty 0 4
 password project
 login
!
end


R2 configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R2
!
username R1 password 0 cisco
!
no ip domain-lookup
!
isdn switch-type basic-ni
!
process-max-time 200
!
interface FastEthernet0/0
 ip address 172.16.48.1 255.255.240.0
 no ip directed-broadcast
!
interface BRI0/0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 dialer pool-member 1
 isdn switch-type basic-ni
 isdn spid1 5105554001 5554000
 isdn spid2 51055540010001 5554001
!
interface Serial0/0
 backup delay 10 40
 backup interface Dialer1
 ip address 172.16.96.2 255.255.240.0
 no ip directed-broadcast
 encapsulation frame-relay
 frame-relay map ip 172.16.96.2 16
!
interface Dialer1
 ip address 172.16.16.2 255.255.240.0
 no ip directed-broadcast
 encapsulation ppp
 dialer remote-name R2
 dialer idle-timeout 300
 dialer string 5551234
 dialer string 5551235
 dialer load-threshold 128 either
 dialer pool 1
 dialer-group 1
 ppp authentication chap
 ppp multilink
!
router igrp 100
 passive-interface Dialer1
 network 172.16.0.0
!
ip classless
ip route 172.16.32.0 255.255.240.0 172.16.96.1
ip route 172.16.32.0 255.255.240.0 172.16.16.1 200
no ip http server
!
dialer-list 1 protocol ip permit
!
line con 0
 transport input none
line aux 0
line vty 0 4
 password project
 login
!
end


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Re: problem in router config ? [7:27288]

2001-11-25 Thread Anthony Toh

I have add in the ppp authenication chap command at both physical and
logical interfaces.

This is my output of debug q931 commnad :

The message Message not compatible seems to be the problem, can anyone
highlight me what does it mean ?

01:00:52: ISDN BR0/0: RX  on B1
 at 64 Kb/
01:00:225504882236: %DIALER-6-BIND: Interface BRI0/0:1 bound to profile
Dialer1
01:00:223338299392: ISDN BR0/0: TX -  CALL_PROC pd = 8  callref = 0x9B
01:00:225504866764: Channel ID i = 0x89
01:00:52: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
01:00:52: %DIALER-6-UNBIND: Interface BRI0/0:1 unbound from profile Dialer1
01:00:52: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 5554000
01:00:223338299392: ISDN BR0/0: TX -  CONNECT pd = 8  callref = 0x9B
01:00:225504866764: Channel ID i = 0x89
01:00:223338299392: ISDN BR0/0: TX -  DISCONNECT pd = 8  callref = 0x9B
01:00:225504866764: Cause i = 0x8090 - Normal call clearing
01:00:52: ISDN BR0/0: RX   STATUS pd = 8  callref = 0x9B
01:00:229799834060: Cause i = 0x80E5 - Message not compatible with
call state or protocol error, threshold exceeded

01:00:227633266688: Call State i = 0x0B
01:00:53: ISDN BR0/0: RX   RELEASE_COMP pd = 8  callref = 0x9B
01:00:54: ISDN BR0/0: RX  on B1
 at 64 Kb/s
01:00:234094816828: %DIALER-6-BIND: Interface BRI0/0:1 bound to profile
Dialer1



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RE: Frame-relay [7:24332]

2001-11-25 Thread Anthony Toh

show your config out


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