Gentlefolk,
As a new person to the list I have checked the archive and didn't locate an
answer.
We're Using VLANs to isolate traffic to VMs with a router/firewall-like process
to switch VLAN IDs to complete allowed communication. Only the router/firewall
instance of zLinux is grated trunked, promiscuous access to the vswitch. On the
router/firewall, as soon as we enable the first vconfig 'd interface for a vlan
we start seeing 18 (usually) copies of packets. As long as all eth1.x is down
things behave normally.
Other nodes on the vswitch see normal traffic.
Any suggestions on what we've mis-configured or what data to gather next?
Neal Taylor
Principal Software Engineer
CA Technologies, Inc.
[root@vnphost ~]# vmcp q lan vnptest acc
VSWITCH SYSTEM VNPTEST Type: QDIO Connected: 3 Maxconn: INFINITE
PERSISTENT RESTRICTED ETHERNET Accounting: OFF
USERBASED
VLAN Aware Default VLAN: 0001 Default Porttype: Access GVRP: Disabled
Native VLAN: 0001 VLAN Counters: OFF
MAC address: 02-00-C2-00-00-14 MAC Protection: Unspecified
State: Defined
IPTimeout: 5 QueueStorage: 8
Isolation Status: OFF
Authorized userids:
VNPAPP1 Porttype: Access VLAN: 0002
VNPAPP2 Porttype: Access VLAN: 0003
VNPHOST Porttype: Trunk VLAN: 0002-0003
[root@vnphost tmp]# ifconfig -a
br0 Link encap:Ethernet HWaddr 02:00:C2:00:00:1B
inet6 addr: fe80::c2ff:fe00:1b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:468 (468.0 b)
eth0 Link encap:Ethernet HWaddr 02:00:C2:00:00:1C
inet addr:141.202.162.61 Bcast:141.202.162.255 Mask:255.255.255.0
inet6 addr: fe80::200:c200:1800:1c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12518 errors:0 dropped:0 overruns:0 frame:0
TX packets:10681 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4093811 (3.9 MiB) TX bytes:1588807 (1.5 MiB)
eth1 Link encap:Ethernet HWaddr 02:00:C2:00:00:1B
inet addr:10.55.255.3 Bcast:10.55.255.255 Mask:255.255.255.0
inet6 addr: fe80::c2ff:fe00:1b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5166 errors:0 dropped:0 overruns:0 frame:0
TX packets:4644 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:419062 (409.2 KiB) TX bytes:379468 (370.5 KiB)
eth1.2 Link encap:Ethernet HWaddr 02:00:C2:00:00:1B
inet6 addr: fe80::c2ff:fe00:1b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:984 (984.0 b)
eth1.3 Link encap:Ethernet HWaddr 02:00:C2:00:00:1B
inet6 addr: fe80::c2ff:fe00:1b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:984 (984.0 b)
eth1.4 Link encap:Ethernet HWaddr 02:00:C2:00:00:1B
inet6 addr: fe80::c2ff:fe00:1b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:492 (492.0 b)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
>From a "tcpdum -i eth1". This shows traffic between two other nodes, but 18
>copies of it:
12:19:12.089413 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089444 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089449 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089455 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089460 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089465 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089470 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089475 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089480 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089485 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089490 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089495 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089500 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089505 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089510 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089515 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089520 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
12:19:12.089525 IP 10.55.255.1 > 10.55.255.2: ICMP echo request, id 3334, seq
1, length 64
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