RE: ATM CDP

2000-10-18 Thread Vijay Ramcharan

The "show cdp neighbors detail" command will show you the IP address of the
neighbors.

Vijay Ramcharan
CCNP, CCDP, MCSE


-Original Message-
From: Jake Secrist [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 18, 2000 9:01 AM
To: [EMAIL PROTECTED]
Subject: ATM  CDP


I have a Cisco router connected to a Cisco LightStream 1010 ATM switch.
 The 'sh int atm 1/0' command shows that the interface and line
protocol are up, but I can't ping what I thought was the IP address of
the switch's ATM interface(10.11.1.2/24).  I know the IP address of the
ATM interface on the router (10.11.1.1/24), but I can't figure out the
IP address of the switch's ATM interface.  Would this address normally
show up in the 'show cdp neighbors' command?  The output of that
command shows nothing for the ATM interface.  In the 'sh ip arp'
command, there are only Ethernet entries, none for ATM.  Also, can you
ping over ATM?  Obviously I don't know a whole lot about ATM, but I'd
appreciate any help anyone can offer.

Thanks,

Jake

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Re: ATM CDP

2000-10-18 Thread Kevin Wigle

depends on how you're set up.

on the interface:

 map-group 1

in global config:

map-list 1
 ip 198.103.x.x atm-vc 1 broadcast  == next hop

should get you pingable

but if you're using sub-interfaces then:

on the interface:

interface ATM1/0.2 point-to-point
 ip address 198.103.x.x 255.255.255.252
 no ip directed-broadcast
 atm pvc 2 0 172 aal5snap 1 1

it just doesn't happen by putting an address on the interface.

also, remember that ATM passes cells, if you want to get ip stats from it
then you will have to make a BVI. Here is an example on one of our lab
routers.

LabR05#sh ip arp
Protocol  Address  Age (min)  Hardware Addr   Type   Interface
Internet  198.103.x.x  -   00e0.b03f.fc40  ARPA   Ethernet2/0
Internet  198.103.x.x 65   0800.2bb3.19b5  ARPA   Ethernet2/0
Internet  198.103.x.x   -   00e0.b03f.fc41  ARPA   Ethernet2/1
Internet  198.103.x.x  1   .0c3f.026b  ARPA   Ethernet2/0
Internet  198.103.x.x  -   .0c49.2958  ARPA   BVI1
Internet  198.103.x.x207   0050.7338.7401  ARPA   BVI1
Internet  198.103.x.x   7   0010.5a89.bbdf  ARPA   Ethernet2/0
Internet  198.103.x.x  1   .b450.4554  ARPA   Ethernet2/0
Internet  198.103.x.x  2   0060.089e.09f0  ARPA   Ethernet2/0
Internet  198.103.x.x  1   00e0.14cc.6300  ARPA   Ethernet2/0
Internet  198.103.x.x   0   0800.2085.7c7a  ARPA   Ethernet2/0

here you can see that the BVI definitely responds to IP.

hope this gives you a few ideas.

Kevin Wigle
CCDP/CCNP...

- Original Message -
From: "Jake Secrist" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, October 18, 2000 9:00 AM
Subject: ATM  CDP


 I have a Cisco router connected to a Cisco LightStream 1010 ATM switch.
  The 'sh int atm 1/0' command shows that the interface and line
 protocol are up, but I can't ping what I thought was the IP address of
 the switch's ATM interface(10.11.1.2/24).  I know the IP address of the
 ATM interface on the router (10.11.1.1/24), but I can't figure out the
 IP address of the switch's ATM interface.  Would this address normally
 show up in the 'show cdp neighbors' command?  The output of that
 command shows nothing for the ATM interface.  In the 'sh ip arp'
 command, there are only Ethernet entries, none for ATM.  Also, can you
 ping over ATM?  Obviously I don't know a whole lot about ATM, but I'd
 appreciate any help anyone can offer.

 Thanks,

 Jake

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