DLSw problem whith two connection to the host

Question

Hello every one,
My name's Mostafa CHAKIR,I am a technical ingeneer in the CBI Networks Morocco.
We have a dual connection to a IBM Host via two 7206 routers called CPA1 and CPA2 in the central site.
In the remote site we have a 2610 routers connected with Public Frame-Relay, and anohter link with ISDN as backup.
Two peers dlsw from the remote site are configured, the first with CPA2 and its backup with CPA1 ( as you will see in the configuration).
when the link go down (FR), the peers stay in stat connected in both site until there is a SNA trafic, and the ddr is made from the remote site.
The problem is when the two link go down, the Host always see that the remote site is connected, the router CPA2 don't breack the circuit, and when the ISDN link come UP first, it open a circuit with a CPA1 even if the CPA2 is active, the HOST don't accept the second circuit cause it says that there is another circuit opened in the CPA2 with the same IDNum IDBlock. I tried to resolve that with the "dlsw timer sna-cahe-timeout" command but it have no effect.
i search some solution to this problem.
******************CPA1 Configuration**************************
source-bridge ring-group 2000
dlsw timer sna-cache-timeout
dlsw local-peer peer-id 1.1.1.1 keepalive 0 promiscuous
dlsw icanreach mac-exclusive
dlsw icanreach mac-address 4000.0e02.7206 mask ffff.ffff.ffff
dlsw icanreach mac-address 4000.0e13.7206 mask ffff.ffff.ffff
interface Loopback0
ip address 1.1.1.1 255.255.255.255
interface FastEthernet0/0
ip address 192.168.6.1 255.255.255.248
duplex full
speed 100
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
interface Channel1/0
ip address 130.114.2.2 255.255.255.0 secondary
ip address 130.114.1.2 255.255.255.0
no ip redirects
no ip mroute-cache
no keepalive
llc2 dynwind
claw 0122 12 130.114.2.1 DEVL WCPA1 TCPIP TCPIP
claw 0111 02 130.114.1.1 PROD WCPA1 TCPIP TCPIP
csna 0111 00 maxpiu 65535 length-delay 0
csna 0122 10 maxpiu 65535 length-delay 0
max-llc2-sessions 1024
lan TokenRing 1
source-bridge 1000 1 2000
adapter 0 4000.0e02.7206
adapter 1 4000.0e13.7206
*******************CPA2 configuration*****************************
source-bridge ring-group 2200
dlsw timer sna-cache-timeout
dlsw local-peer peer-id 2.2.2.2 keepalive 0 promiscuous
dlsw icanreach mac-exclusive
dlsw icanreach mac-address 4000.0e02.7206 mask ffff.ffff.ffff
dlsw icanreach mac-address 4000.0e13.7206 mask ffff.ffff.ffff
interface Loopback0
ip address 2.2.2.2 255.255.255.255
interface FastEthernet0/0
ip address 192.168.6.2 255.255.255.248
duplex full
speed 100
interface FastEthernet0/1
no ip address
shutdown
duplex full
speed 100
interface Channel1/0
ip address 130.114.2.3 255.255.255.0 secondary
ip address 130.114.1.3 255.255.255.0
no ip redirects
no ip route-cache cef
no ip mroute-cache
no keepalive
llc2 dynwind
claw 0122 32 130.114.2.1 DEVL WCPA2 TCPIP TCPIP
claw 0111 22 130.114.1.1 PROD WCPA2 TCPIP TCPIP
csna 0111 20 maxpiu 65535 length-delay 0
csna 0122 30 maxpiu 65535 length-delay 0
max-llc2-sessions 1024
lan TokenRing 2
source-bridge 1100 1 2200
adapter 2 4000.0e02.7206
adapter 3 4000.0e13.7206
*******************Remote Site Configuration************************
dlsw local-peer peer-id 192.1.120.100 keepalive 0
dlsw remote-peer 0 tcp 2.2.2.2 timeout 90
dlsw remote-peer 0 tcp 1.1.1.1 backup-peer 2.2.2.2 timeout 90 linger 5
dlsw bridge-group 1
Thank You for your response.

Answer 1

Hello,
Thank you for your response.
If i remove the keepalive 0 from the configuration of the remote site's router, the ddr will be made immediately after the primary link goes down (FR), it will stay active all time, because the dlsw is the intersting trafic for the ddr :access-
access-list 101 deny icmp any any
access-list 101 deny eigrp any any
access-list 101 permit tcp any any eq 2065
access-list 101 permit udp any any eq 2065
access-list 101 permit udp any any eq 2067
dialer-list 1 protocol ip list 101
I tested it before, and the only solution is to configure keepalive 0.
Thank you