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Bonding and trunking
I am having issues with an OpenBSD vlan interface seeing traffic on a trunk interface.
I've got an OpenBSD 4.4 system running on a Dell PoowerEdge 2950 with 2x Neterion Xframe E SR interface cards. These are connected to a Cisco 6509E with WS-X6704-10GE line cards over multimode fiber. The logical configuration is a router on a stick where the "stick" is a bonded (LACP) pair of fiber connections running dot1q vlan tagging. The bonding seems to be working well, but I haven't been able to test the failover and load balancing yet. There is traffic flows on each of the LACP members and on the trunk0 interface. The traffic has the correct vlan tagging, yet does not appear to flow to the vlan interface. Any ideas would be appreciated, Matt Relevant configurations and tcpdumps below: OpenBSD hostname.xxxx Code:
bash-3.2# cat /etc/hostname.xge0 up bash-3.2# cat /etc/hostname.xge1 up bash-3.2# cat /etc/hostname.trunk0 trunkproto loadbalance trunkport xge0 trunkport xge1 bash-3.2# cat /etc/hostname.vlan96 inet XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX NONE vlan 96 vlandev trunk0 OpenBSD ifconfig Code:
bash-3.2# ifconfig xge0 xge0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:0c:fc:00:24:a8 trunk: trunkdev trunk0 media: Ethernet 10GbaseSR status: active inet6 fe80::20c:fcff:fe00:24a8%xge0 prefixlen 64 scopeid 0x1 bash-3.2# ifconfig xge1 xge1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:0c:fc:00:24:a8 trunk: trunkdev trunk0 media: Ethernet 10GbaseSR status: active inet6 fe80::20c:fcff:fe00:2086%xge1 prefixlen 64 scopeid 0x2 bash-3.2# ifconfig trunk0 trunk0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:0c:fc:00:24:a8 trunk: trunkproto loadbalance trunkport xge1 active trunkport xge0 master,active groups: trunk media: Ethernet autoselect status: active bash-3.2# ifconfig vlan96 vlan96: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:0c:fc:00:24:a8 vlan: 96 priority: 0 parent interface: trunk0 groups: vlan inet XXX.XXX.XXX.XXX netmask 0xffffe000 broadcast XXX.XXX.XXX.XXX inet6 fe80::20c:fcff:fe00:24a8%vlan96 prefixlen 64 scopeid 0x8 Code:
core#sh run int port-channel 30 interface Port-channel30 description firewall switchport switchport trunk encapsulation dot1q switchport trunk allowed vlan 96 switchport mode trunk switchport nonegotiate no ip address spanning-tree link-type point-to-point end core#sh run int te 2/4 interface TenGigabitEthernet2/4 description firewall.1 switchport switchport trunk encapsulation dot1q switchport mode trunk no ip address channel-protocol lacp channel-group 30 mode active end core#sh run int te 3/4 interface TenGigabitEthernet3/4 description firewall.2 switchport switchport trunk encapsulation dot1q switchport mode trunk no ip address channel-protocol lacp channel-group 30 mode active end Traffic dumps on the various interfaces Code:
bash-3.2# tcpdump -i xge0 tcpdump: listening on xge0, link-type EN10MB 15:03:17.548532 802.1Q vid 96 pri 0 arp who-has XXX.XXX.XXX.XXX (Broadcast) tell XXX.XXX.XXX.XXX 15:03:17.888762 802.1Q vid 304 pri 0 arp who-has XXX.XXX.XXX.XXX tell XXX.XXX.XXX.XXX bash-3.2# tcpdump -i xge1 tcpdump: listening on xge1, link-type EN10MB 15:05:34.625969 802.1Q vid 96 pri 0 XXX.XXX.XXX.XXX.ipp > XXX.XXX.XXX.XXX.ipp: udp 137 15:05:34.723712 802.1Q vid 316 pri 0 XXX.XXX.XXX.XXX.netbios-dgm > XXX.XXX.XXX.XXX.netbios-dgm: udp 201 bash-3.2# tcpdump -i trunk0 tcpdump: listening on trunk0, link-type EN10MB 15:06:28.561382 802.1Q vid 305 pri 0 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0x35240800 secs:45640 [|bootp] 15:06:28.574800 802.1Q vid 96 pri 0 arp who-has XXX.XXX.XXX.XXX tell XXX.XXX.XXX.XXX bash-3.2# tcpdump -i vlan96 tcpdump: listening on vlan96, link-type EN10MB ^C 0 packets received by filter 0 packets dropped by kernel Last edited by mcormie; 25th March 2009 at 10:57 PM. Reason: Email notification |
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