Dear All Expert,
Good day.
Currently, i have a issue of the DLsw ER+ and i hope that DLSw+ Netpro Experts can highlight/advice my problem.
Problem Description:
Please refer the diagram - dlsw+.jpg first.
Early, my network did configure the #bridge-group 1 in both Fast-Ethernet of Router A and B, but it suffer the common dlsw issue
•Unreliable Local Reachability Information
•Circuit Contention
•Undetected Looping Explorers
After removing one #bridge-group 1 from Router B Fast-Ethernet, the network become stable already.
Now i still look for the DLsw Ethernet redundancy solution (Purpose = Router A as primary and Router B will take over role A
in case Router A down), and do some research.
~~~~~~~~~~~~~~~~~~~~~~~
URL 1 - http://www.networkingunlimited.com/white003.html
URL 2 - http://www.cisco.com/en/US/docs/ios/12_0t/12_0t5/feature/guide/ethredu.html
URL 3 - http://www.cisco.com/en/US/tech/tk331/tk336/technologies_configuration_example09186a0080093ecc.shtml
~~~~~~~~~~~~~~~~~~~~~~~
But, it look like my problem more suitable to use cisco solution << URL 2 - Figure 6 DLSw+ with Ethernet Redundancy Enabled >>
Example from URL 2:
~~~~~~~~~~~~~~~~~~~~~~~~
Router B
dlsw local-peer peer id 10.2.24.2
dlsw remote-peer 0 tcp 10.2.17.1
int e1
ip address 150.150.2.1 255.255.255.0
dlsw transparent redundancy-enable 9999.9999.9999
Router A
dlsw local-peer peer-id 10.2.24.3
dlsw remote-peer 0 tcp 10.1.12.1
int e1
ip address 150.150.2.3 255.255.255.0
dlsw transparent redundancy-enable 9999.9999.9999 master priority 1
dlsw transparent timers sna 1500
~~~~~~~~~~~~~~~~~~~~~~~~
Now my concerns are
1. It is really suitable to use the URL2 solution ? or Dlsw passive and backup-peer are better ?
2. If using URL2 solution, is it following the multicast MAC-address 9999.9999.9999 ? How to choose the MAC address ?
3. Should i still put the #bridge-group 1 command into both Fast-Ethernet of Router A and B ? If still working without the #bridge-group 1 command ?
4. Just review the URL3, and it is more complicated. Because it has to configure each MAC-address in the Fast-Ethernet and #dlsw transparent Map. Is it neccessary to use #dlsw transparent map or the URL2 will do it as well.
FYI - the current dlsw config of router A and B
~~~~~~~~~~~~~~~~
dlsw local-peer peer-id 1.1.1.1
dlsw timer explorer-wait-time 3
dlsw timer explorer-delay-time 1
dlsw timer connect-timeout 600
dlsw timer local-connect-timeout 15
dlsw rsvp default
dlsw remote-peer 0 tcp 3.3.3.3 host-netbios-out XXX
dlsw remote-peer 0 tcp 4.4.4.4
dlsw remote-peer 0 tcp 5.5.5.5
dlsw bridge-group 1
dlsw circuit-keepalives
int fa0/0
bridge-group 1 (only in router A now)
~~~~~~~~~~~~~~~~~~
Please kindly help it.
Regards
Terry
