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server load balancing on 6850

Posted: 04 Dec 2015 12:46
by thomassm
is there anybody with experience with this, i am trying to configure on a 6850 layer 2 unsuccessfully.
it seems that the servers are unreachable? (discover mode)

Cluster repo
VIP : 135.227.134.30,
Type : L3
Admin status : Enabled,
Operational status : Out of Service,
Ping period (seconds) : 60,
Ping timeout (milliseconds) : 3000,
Ping retries : 3,
Redirect algorithm : round robin,
Probe : http,
Number of packets : 0,
Number of servers : 2
Server 135.227.134.31
Admin status = Enabled, Operational status = Discovery,
Weight = 1, Availability (%) = 0
Server 135.227.134.32
Admin status = Enabled, Operational status = Discovery,
Weight = 1, Availability (%) = 0

thanks!
-tom

Re: server load balancing on 6850

Posted: 06 Dec 2015 08:37
by silvio
Did you mean SLB or NLB?
regards
Silvio

Re: server load balancing on 6850

Posted: 07 Dec 2015 18:10
by thomassm
i was referring to slb

thanks
-tom

Re: server load balancing on 6850

Posted: 08 Dec 2015 03:29
by silvio
Did you have configured at your servers the same loopback addresse like declared in network guide. At the loopback interface there may be no gateway address to configure.
regards
Silvio

Re: server load balancing on 6850

Posted: 09 Dec 2015 16:55
by thomassm
we configured one, but it stayed in the "discovery" state on the switch

thanks
Thomas

Re: server load balancing on 6850

Posted: 10 Dec 2015 01:59
by silvio
I never tested it in last 10 years. Only in my ACSE certification I did - it did work.

Below is the steps for creating the loopback and to enable
forwarding, weakrecieve and weaksend for both loopback adapter and the
local area connection.
1. Install the Loopback adapter in WIN2008 as it is not installed by default.
2. Configure cluster IP to the Loopback adapter.
3. Issue the ipconfig /all command on the command line to determine the interface name of the loopback adapter.
Ethernet adapter Local Area Connection 2:
Description ...Microsoft Loopback Adapter
In this example we have “Local Area Connection 2” as the name for loopback
adapter.
4. Alias the cluster IP to the loopback using the following netsh command :
netsh interface ipv4 add address "Local Area Connection 2"
cluster_ip_address
5. Enable forwarding for the loopback adapter on the machine with the following
command in the command prompt
Netsh interface ipv4 set interface "Local Area Connection"
forwarding=enabled
After the command, we should receive an "OK" message
6. Enable the weakhostrecieve and send for the loopback adapter and the physical
local area connection
netsh int ipv4 set int "Local Area Connection"
weakhostreceive=enabled weakhostsend=enabled
netsh int ipv4 set int "Local Area Connection 2"
weakhostreceive=enabled weakhostsend=enabled
This will make the server to respond to the SLB VIP configured in the AOS switch
configuration.

Re: server load balancing on 6850

Posted: 21 Dec 2015 09:02
by lmherdvera
Guys, need help to this problem:

Starting dynamic software load from '/flash/certified/'...
unable to load Stack Manager Library - ABORT!
Thanks...