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[Xen-devel] Networking problems at xend start

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Networking problems at xend start
From: "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>
Date: Fri, 26 Aug 2005 17:20:32 -0400
Cc: "Magolan, John F" <John.Magolan@xxxxxxxxxx>, "Davis, Jason" <jason.davis@xxxxxxxxxx>, "Vessey, Bruce A" <Bruce.Vessey@xxxxxxxxxx>, "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>
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Thread-topic: Networking problems at xend start
I am running Xen on a Dell Precision 470. The box has two Intel Xeon
EMT64 procs with hyperthreading enabled with 2 Gigs of RAM.I am running
SUSE Sles 9.

I am noticing that when I bring up xend on a machine with 2 ethernet
cards, Dom 0 loses networking. I can still see the machine from within
the subnet it belongs to, but it has no visibility outside.
The machine has a Dell 82545M Gigabit Ethernet controller set up as eth0
and an intel Etherexpress pro 100 server adapter set up as eth1.

I have included the ifconfig output before and after xend start.
I have also included netstat-rn output with and without the intel
eepro100 

I don't see any messages on the serial output.

Is any one else seeing similar problems?

Raj

---------------ifconfig before xend start

eth0      Link encap:Ethernet  HWaddr 00:0F:1F:8D:00:72  
          inet addr:192.63.245.69  Bcast:192.63.245.255
Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9160 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14957 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:603281 (589.1 Kb)  TX bytes:20736627 (19.7 Mb)
          Base address:0xdcc0 Memory:dfee0000-dff00000 

eth1      Link encap:Ethernet  HWaddr 00:90:27:B6:9D:02  
          inet addr:192.63.245.56  Bcast:192.63.245.255
Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:397 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:36956 (36.0 Kb)  TX bytes:692 (692.0 b)

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:15195 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15195 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:8895385 (8.4 Mb)  TX bytes:8895385 (8.4 Mb)

----------------ifconfig after xend start
eth0      Link encap:Ethernet  HWaddr 00:0F:1F:8D:00:72  
          inet addr:192.63.245.69  Bcast:192.63.245.255
Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:78 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:6102 (5.9 Kb)  TX bytes:1240 (1.2 Kb)

eth1      Link encap:Ethernet  HWaddr 00:90:27:B6:9D:02  
          inet addr:192.63.245.56  Bcast:192.63.245.255
Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1423 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1368 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:101651 (99.2 Kb)  TX bytes:1677335 (1.5 Mb)

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:20951 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20951 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:10742785 (10.2 Mb)  TX bytes:10742785 (10.2 Mb)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:9855 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15814 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:651133 (635.8 Kb)  TX bytes:21623556 (20.6 Mb)
          Base address:0xdcc0 Memory:dfee0000-dff00000 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3 errors:0 dropped:0 overruns:0 frame:0
          TX packets:78 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1240 (1.2 Kb)  TX bytes:6102 (5.9 Kb)

xen-br0   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:77 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:5712 (5.5 Kb)  TX bytes:0 (0.0 b)


----------ifconfig after xend start with only 1 nic

eth0      Link encap:Ethernet  HWaddr 00:0F:1F:8D:00:72  
          inet addr:192.63.245.69  Bcast:192.63.245.255
Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:297 errors:0 dropped:0 overruns:0 frame:0
          TX packets:297 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:20561 (20.0 Kb)  TX bytes:171020 (167.0 Kb)

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:14715 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14715 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:8830936 (8.4 Mb)  TX bytes:8830936 (8.4 Mb)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:9883 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17040 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:709060 (692.4 Kb)  TX bytes:24438245 (23.3 Mb)
          Base address:0xdcc0 Memory:dfee0000-dff00000 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:297 errors:0 dropped:0 overruns:0 frame:0
          TX packets:297 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:171020 (167.0 Kb)  TX bytes:20561 (20.0 Kb)

xen-br0   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:66 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:6148 (6.0 Kb)  TX bytes:0 (0.0 b)


---------------Netstat with 2 ethernet cards before xend starts

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt
Iface
192.63.245.0    0.0.0.0         255.255.255.0   U         0 0          0
eth0
192.63.245.0    0.0.0.0         255.255.255.0   U         0 0          0
eth1
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0
lo
0.0.0.0         192.63.245.250  0.0.0.0         UG        0 0          0
eth0

--------------Netstat with 2 ethernet cards after xend starts
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt
Iface
192.63.245.0    0.0.0.0         255.255.255.0   U         0 0          0
eth1
192.63.245.0    0.0.0.0         255.255.255.0   U         0 0          0
eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0
lo

-------------Netstat with 1 ethernet card after xend starts

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt
Iface
192.63.245.0    0.0.0.0         255.255.255.0   U         0 0          0
eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0
lo
0.0.0.0         192.63.245.250  0.0.0.0         UG        0 0          0
eth0


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