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I appreciate the quick response. However, I'm not sure if this answers my
original question. Can we exceed 255 "eth0:#" virtual interfaces w/o
problems? We use heartbeat and setup our failover addresses within the
haresources file using the provided IPaddr script (uses /sbin/ifconfig) to
add and remove these addresses on failover.
Thanks Again,
Billy Olson
----- Original Message -----
From: "Roberto Nibali" <ratz@xxxxxx>
To: "LinuxVirtualServer.org users mailing list."
<lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Wednesday, December 17, 2003 9:46 AM
Subject: Re: Virtual Interfaces?
> ntadmin@xxxxxxxxxxxx wrote:
> > We are nearing 255 virtual interfaces on the external side of our LVS
> > system. Can somebody tell me if this is going to be a hard limit or if
we
> > can go beyond 255 on one network card?
>
> No problem (proof of concept below):
>
> # ip addr show dev lo | grep 'inet ' | wc -l
> 1
> # for ((i = 1; i < 255; i++)); do for ((j = 1; j < 4; j++)); do ip addr
add
> 127.0.$j.$i/32 dev lo brd + label lo:$i-$j 1>/dev/null 2>&1; done; done
> # ip addr show dev lo | grep 'inet ' | wc -l
> 763
> # for ((i = 1; i < 255; i++)); do for ((j = 1; j < 4; j++)); do ip addr
del
> 127.0.$j.$i/32 dev lo brd + label lo:$i-$j 1>/dev/null 2>&1; done; done
> # ip addr show dev lo | grep 'inet ' | wc -l
> 1
>
> Best regards,
> Roberto Nibali, ratz
> --
> echo '[q]sa[ln0=aln256%Pln256/snlbx]sb3135071790101768542287578439snlbxq'
| dc
>
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