DCLI numbers

[lonnie1230]

Dear Forum

I have an unusual problem. I am currently switching all of my cabletron equipment over to Cisco routers in my Frame-Relay cloud. We will in near future switch over to pure IP routing as opposed to our current situation which is transparent bridging. All went well, until I switched to a Cisco router at the head end. I can see my head end location and all of my satellite connections if DLCI 100 is not including in my mappings. Transversly, if DLCI 100 is included in my mappings, I can only see the head end office and the satellite office assigned DLCI 100. However, when I plug the Cabletron router back in, everything works perfectly. Does anyone have in ideas concerning this issue. All of my satellite offices are set up accordingly. I have a total of six satellite offices all with Cisco 1720 routers.

 

[jeter]

There is a programming error somewhere in your configuration. Please note how many remote DLCI's you have and the host dlci's. Is this on a full t1? what lmi type are you setup for? Post a config from your cisco. “Reserve your right to think, for even to think wrongly is better than not to think at all”

Fisher CCNA

 

[lonnie1230]

I have 6 remote offices connected by T1 connections and my LMI type is Ansi. As I mentioned before, all of my satellite office are set up identical, except for the DLCI numbers. My configuration for the satellite office assigned DLCI number 100 is the following:

memory-size iomem 25
ip subnet-zero
no ip routing
!
!
!
!
interface Serial0
--More--   ip address 38.253.155.245 255.255.255.0
encapsulation frame-relay IETF
no ip route-cache
frame-relay map bridge 100 broadcast IETF
frame-relay lmi-type ansi
bridge-group 1
!
interface FastEthernet0
ip address 38.253.155.245 255.255.255.0
no ip route-cache
speed auto
full-duplex
bridge-group 1
!
ip classless
no ip http server
!
bridge 1 protocol ieee
!
line con 0
line aux 0
line vty 0 4

The configuration is identical with all of the other offices, except for the IP address and DLCI number. I have no problems seeing each office when hooked to the Cabletron Router. My head end configuration lists each DLCI location as follows:

ip subnet-zero
no ip routing
!
!
bridge irb
!
!
interface FastEthernet0
no ip address
no ip route-cache
speed auto
full-duplex
--More--   bridge-group 1
!
interface Serial0
no ip address
encapsulation frame-relay IETF
no ip route-cache
frame-relay map bridge 101 broadcast IETF
frame-relay map bridge 102 broadcast IETF
frame-relay map bridge 104 broadcast IETF
frame-relay map bridge 106 broadcast IETF
frame-relay map bridge 200 broadcast IETF
frame-relay lmi-type ansi
bridge-group 1
!
interface BVI1
ip address 38.253.155.4 255.255.255.0
!
ip classless
no ip http server
!
!
bridge 1 protocol ieee

All locations are functional if I leave DLCI 100 out of the configuration. When I add DLCI 100, I loose connection to all of the other remote locations. Please advise. Should I replace my Cisco router at the head end with a higher series? It is Cisco 1720, identical to my routers at my remote locations.