Why disable cdp for back-to-back serial connection? [7:62764]

2003-02-10 Thread Lawrence Law
Dear all,


From cisco configuration example

http://www.cisco.com/en/US/tech/tk713/tk317/technologies_configuration_examp
le09186a00800944ff.shtml

I'm wondering that the line no cdp enable is required for both router
in order to make a serial connection up for back-to-back connection.

Regards,
Lawrence




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=62764t=62764
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]



Re: Why disable cdp for back-to-back serial connection [7:62798]

2003-02-10 Thread Lawrence Law
Dear Priscilla,

Thank you for your clear explaination.

May be it is better to disable cdp for low speed link, and security issue.

Regards,
Lawrence



Priscilla Oppenheimer  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Cisco Discovery Protocol (CDP) is a managment protocol that allows routers
 and switches to tell each other about their IOS version, hardware
platform,
 and basic config info. Some security experts say to disable it because it
 tells too much.

 It has nothing to do with bringing the serial interface up/up. You could
use
 it or you could not. The two routers on the HDLC link don't have to agree.
 One could send CDP while the other doesn't and the link should still come
 up/up, assuming everything is OK at the physical and data-link layers.

 It's too bad they used no cdp enable in that simple example with no
 explanation. I don't think it's the default? So someone had to type it in,
 so they should have explained it.

 Priscilla


 Lawrence Law wrote:
 
  Dear all,
 
 
  From cisco configuration example
 
 

http://www.cisco.com/en/US/tech/tk713/tk317/technologies_configuration_examp
  le09186a00800944ff.shtml
 
  I'm wondering that the line no cdp enable is required for
  both router
  in order to make a serial connection up for back-to-back
  connection.
 
  Regards,
  Lawrence




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=62798t=62798
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]



SNMP - Backplane OID for Catalyst 3524XL [7:14955]

2001-08-05 Thread Lawrence Law

Has you tried to monitor Catalyst 3524XL backplane utilization?
I tried Cisco_stack_mib such as .1.3.6.1.4.1.9.5.1.1.8 and
.1.3.6.1.4.1.9.5.1.1.32 but no response.

Any suggestion.

Thank you in advance

Lawrence




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=14955t=14955
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]



FEC between two Catalyst. [7:8373]

2001-06-13 Thread Lawrence Law

Here is my case:

2 Catalyst 2924XL :

CAT_1 configuration (simplified)
!
interface FastEthernet 0/22
!
interface FastEthernet 0/23
  port group 1
!
interface FastEthernet 0/24
  port group 1
!
interface VLAN1
  ip address 10.5.30.253 255.255.255.0

ip default-gateway 10.5.30.254
!


CAT_2 Configuration (simplified)
!
interface FastEthernet 0/22
!
interface FastEthernet 0/23
  port group 1
!
interface FastEthernet 0/24
  port group 1
!
interface VLAN1
  ip address 10.5.30.252 255.255.255.0

ip default-gateway 10.5.30.254
!

Hope the above info is enough.

Problem:
I am able to telnet both Catalysts from a PC from a 10.5.31.0/24 network,
but I can't telnet/ping from CAT_1 command line interface to CAT_2 VLAN1 ip
or e versa.

Is the problem caused by FEC between them? Any suggestion.

Thanks in advance

Lawrence




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=8373t=8373
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]