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Genltemen,
have read throught most of the archives and have not been able to find an
answer to my problem, must be going blind from lack of sleep so please be
genlte if I've over looked something.
This is a installation in our intranet.
There are two win2k IIS real servers behind the LVS.
ip: 172.24.24.21
nm: 255.255.255.0
gw: 172.24.24.1
the same is on real server 2 but a diff ip address.
Am getting copious amounts of arpping and caching at eth0 on both LVS routers.
I'm expecting 4000 users to go though this LVS, will that much arp traffic on
the eth0 side kill connections? I have already increased the arp cache size to
4096, but I'm
still getting overflows.
Sep 23 13:11:45 wbnel01a kernel: NET: 30 messages suppressed.
Sep 23 13:11:45 wbnel01a kernel: Neighbour table overflow.
Sep 23 13:11:49 wbnel01a kernel: NET: 1 messages suppressed.
Sep 23 13:11:49 wbnel01a kernel: Neighbour table overflow.
Sep 23 13:11:52 wbnel01a kernel: NET: 19 messages suppressed.
Sep 23 13:11:52 wbnel01a kernel: Neighbour table overflow.
Sep 23 13:11:58 wbnel01a kernel: NET: 14 messages suppressed.
Sep 23 13:11:58 wbnel01a kernel: Neighbour table overflow.
I'm using RHES3:
kernel 2.4.21-20.ELsmp
RedHat Cluster Suite - LVS packages:
clumanager-1.2.16-1
ipvsadm-1.21-9.ipvs108
piranha-0.7.6-1
redhat-config-cluster-1.0.2-2.0
rh-cs-en-3-1
----------------
LVS sysA:
lvs.cf
serial_no = 287
primary = 10.0.2.32
primary_private = 172.24.24.2
service = lvs
backup_active = 1
backup = 10.0.2.33
backup_private = 172.24.24.3
heartbeat = 1
heartbeat_port = 539
keepalive = 4
deadtime = 8
network = nat
nat_router = 172.24.24.1 eth1:1
nat_nmask = 255.255.255.0
debug_level = NONE
virtual gnetest {
active = 1
address = 10.0.1.99 eth0:1
vip_nmask = 255.255.248.0
port = 80
persistent = 3600
send = "GET / HTTP/1.0\r\n\r\n"
expect = "HTTP"
use_regex = 0
load_monitor = none
scheduler = rr
protocol = tcp
timeout = 6
reentry = 15
quiesce_server = 0
server wbne10a {
address = 172.24.24.21
active = 1
weight = 1
}
server wbnew10b {
address = 172.24.24.22
active = 1
weight = 1
}
}
-----
eth0 Link encap:Ethernet HWaddr 00:0D:60:9C:08:86
inet addr:10.0.2.32 Bcast:10.0.7.255 Mask:255.255.248.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:27195370 errors:0 dropped:0 overruns:0 frame:0
TX packets:12666815 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3128017632 (2983.1 Mb) TX bytes:1724413408 (1644.5 Mb)
Interrupt:16
eth0:1 Link encap:Ethernet HWaddr 00:0D:60:9C:08:86
inet addr:10.0.1.99 Bcast:10.0.7.255 Mask:255.255.248.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3332520 errors:0 dropped:0 overruns:0 frame:0
TX packets:12771782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:717670823 (684.4 Mb) TX bytes:1125877191 (1073.7 Mb)
Interrupt:16
eth0:88 Link encap:Ethernet HWaddr 00:0D:60:9C:08:86
inet addr:10.0.1.88 Bcast:10.0.7.255 Mask:255.255.248.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3332520 errors:0 dropped:0 overruns:0 frame:0
TX packets:12771782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:717670823 (684.4 Mb) TX bytes:1125877191 (1073.7 Mb)
Interrupt:16
eth0:89 Link encap:Ethernet HWaddr 00:0D:60:9C:08:86
inet addr:10.0.1.89 Bcast:10.0.7.255 Mask:255.255.248.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3332520 errors:0 dropped:0 overruns:0 frame:0
TX packets:12771782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:717670823 (684.4 Mb) TX bytes:1125877191 (1073.7 Mb)
Interrupt:16
eth1 Link encap:Ethernet HWaddr 00:0D:60:9C:08:87
inet addr:172.24.24.2 Bcast:172.24.24.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3332520 errors:0 dropped:0 overruns:0 frame:0
TX packets:12771782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:717670823 (684.4 Mb) TX bytes:1125877191 (1073.7 Mb)
Interrupt:17
eth1:1 Link encap:Ethernet HWaddr 00:0D:60:9C:08:87
inet addr:172.24.24.1 Bcast:172.24.24.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3332520 errors:0 dropped:0 overruns:0 frame:0
TX packets:12771782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:717670823 (684.4 Mb) TX bytes:1125877191 (1073.7 Mb)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:126 errors:0 dropped:0 overruns:0 frame:0
TX packets:126 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:16606 (16.2 Kb) TX bytes:16606 (16.2 Kb)
--------------------------------------------------
LVS sysB:
eth0 Link encap:Ethernet HWaddr 00:0D:60:9C:EB:1A
inet addr:10.0.2.33 Bcast:10.0.7.255 Mask:255.255.248.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2680645 errors:0 dropped:0 overruns:0 frame:0
TX packets:48901 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:497278881 (474.2 Mb) TX bytes:3417780 (3.2 Mb)
Interrupt:16
eth1 Link encap:Ethernet HWaddr 00:0D:60:9C:EB:1B
inet addr:172.24.24.3 Bcast:172.24.24.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2679782 errors:0 dropped:0 overruns:0 frame:0
TX packets:46733 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:497213909 (474.1 Mb) TX bytes:2991455 (2.8 Mb)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:33 errors:0 dropped:0 overruns:0 frame:0
TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4537 (4.4 Kb) TX bytes:4537 (4.4 Kb)
Have I missed anything obvious in my config's or is this normal?
regards
Michael Sztachanski
Systems Admin/Engineer
Enterprise Web Services
CADRE TECHNOLOGY
Level 1, 157 Ann Street, BRISBANE QLD 4000
phone: +61 7 3011 7151
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