[prev in list] [next in list] [prev in thread] [next in thread] 

List:       loadbalancing-l
Subject:    Re: [load balancing] Big IP / HA 4.2
From:       Tim Maestas <lb () dnsconsultants ! com>
Date:       2003-01-26 0:12:50
[Download RAW message or body]


I'm assuming you mean a /28 network (255.255.255.240) on the outside and a 
/27 network (255.255.255.224) on the inside (you're mixing cidr notation 
with the last octet of the netmask in your post...)

What happens if you ping nodes on the inside network, rather than the 
shared BigIP address?  Still no packet loss?  Are you seeing packet loss 
for traffic other than ICMP?  Lots of devices will drop ICMP if they are 
too busy dealing with other "more important" traffic.

-Tim


On Sat, 25 Jan 2003, Rick Knospler wrote:

> I have a pair of BIG IP boxes configured with a /240 subnet on the external 
> / VIP port and a /224 network on the internal / node side of things..
> 
> I recently noticed packet loss when pinging the external shared IP address 
> and other /240 addresses (VIP's) on the external interface.  Approx 8% 
> loss..  When I ping the inside shared gateway IP address for /224 network, 
> I get no packet loss.  Since the only path to the inside gateway is through 
> the BigIP I am confused as to why data can pass through the external 
> interface (which shows packet loss) to a different interface with no packet 
> loss.
> 
> All interfaces are configured for 100/full duplex as well as at the switch, 
> no autodetect happening.  Using Cisco 2900 series switches and all show no 
> hardware, line or duplex errors.
> 
> I tried failing over to our backup box and had the same packet loss..
> 
> Any clues?
> 
> 
> ____________________
> The Load Balancing Mailing List
> Unsubscribe:    mailto:majordomo@vegan.net?body=unsubscribe%20lb-l
> Archive:        http://vegan.net/lb/archive
> LBDigest:       http://lbdigest.com
> MRTG with SLB:  http://vegan.net/MRTG
> Hosted by:	http://www.tokkisystems.com
> 

____________________
The Load Balancing Mailing List
Unsubscribe:    mailto:majordomo@vegan.net?body=unsubscribe%20lb-l
Archive:        http://vegan.net/lb/archive
LBDigest:       http://lbdigest.com
MRTG with SLB:  http://vegan.net/MRTG
Hosted by:	http://www.tokkisystems.com

[prev in list] [next in list] [prev in thread] [next in thread]