search for: veth0

Hi, I am using Xen 4.1.1 with Linux 3.0.1 kernel. Previously (Xen 3.4.4 and linux kernel 2.6.18) Xen by default created veth0 <--> vif0.0 pair in dom0. With Xen 4.1.1 these pairs are missing in dom0. Using command ''ip link add type veth'' I can create veth0 and veth1 but vif0.0 is still missing in dom0. (When new domU created I can see vif1.x created) Could you please help me with understanding foll...

Hi, I am using Xen 4.1.1 with Linux 3.0.1 kernel. Previously (Xen 3.4.4 and linux kernel 2.6.18) Xen by default created veth0 <--> vif0.0 pair in dom0. With Xen 4.1.1 these pairs are missing in dom0. Using command ''ip link add type veth'' I can create veth0 and veth1 but vif0.0 is still missing in dom0. (When new domU created I can see vif1.x created) Could you please help me with understanding foll...

...5.255 Mask:255.0.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:21 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:0 (0.0 b) TX bytes:882 (882.0 b) veth0 Link encap:Ethernet HWaddr 00:40:63:D7:A3:82 inet addr:10.0.0.4 Bcast:10.255.255.255 Mask:255.0.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:120 errors:0 dropped:0 overruns:0 carri...

...n the dom0 (to run a domU in a different vlan than the default) I run /etc/xen/scripts/network-bridge start netdev=eth0.302 bridge=xen-br302 antispoof=no where eth0.302 is an interface associated with my vlan 302 (it tags with this vlan identifier). The problem I have is that it returns: Link veth0 is missing. This may be because you have reached the limit of the number of interfaces that the loopback driver supports. If the loopback driver is a module, you may raise this limit by passing it as a parameter (nloopbacks=<N>); if the driver is compiled statically into the kernel, then you...

> Hi. what creates veth0 and vifu.0, when? what''s the > underlying architecture behind them? Just trying to > understand the internals. netback/loopback.c creates them. It''s effectively a point to point link, allowing domain 0 to connect on to the bridge in the same manner that other domains d...

> > When you run xend it runs network-bridge which creates the bridge, > > renames eth0->peth0 and veth0->eth0 and brings the new eth0 back up. > > kewl, thx Ian. i see network-route doesnt do this. i think > thats a good thing. do you forsee that changing? I expect that in most routed configurations people use their own network script rather than using the default. I''m not...

During my attempts to get the latest bridge networking model working on my system, I often invoked ''network-bridge stop'' with total failure. Attached is an updated version that works. -Andrew signed-off-by: Andrew Theurer <habanero@us.ibm.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

...I think the current default is a rather miserly 1 (and should be increased), but can be set on the command line. Ian > Em Wednesday 14 September 2005 16:30, John Wilson escreveu: > > Yo, > > > > I had big problems with this myself, but now as far as I can tell, > > veth0 (renamed to eth0 in the v recent releases) is the virtual nic > > for dom0 which corresponds to the virtual eth0 nics in the > domU''s (the > > physical nic itself has been renamed to peth0). > > > > The vifU.N''s are the dom0 links to the virtual nics...

...l show ${bridge} echo ' ' ip route list echo ' ' route -n echo '============================================================' } op_start () { create_bridge xenbr0 add_to_bridge xenbr0 vif0.0 add_to_bridge xenbr0 bond0 transfer_mac bond0 veth0 ip link set veth0 up ip link set vif0.0 up transfer_addrs bond0 veth0 sleep 3 transfer_routes bond0 veth0 } op_stop () { transfer_routes veth0 bond0 transfer_addrs veth0 bond0 ip link set veth0 down ip link set bond0 down transfer_mac veth0 bond0 ip lin...

Hi, I''m using RHEL linux 5.1, I can''t add the another NIC to my virtual machine. # /etc/xen/scripts/network-bridge start Link veth0 is missing. This may be because you have reached the limit of the number of interfaces that the loopback driver supports. If the loopback driver is a module, you may raise this limit by passing it as a parameter (nloopbacks=<N>); if the driver is compiled statically into the kernel, then you...

When does vif0.0 get created? Is there some shell magic? I''m trying to figure out how to do a similar peth1/veth1 split for eth1. -- Nicholas Lee http://stateless.geek.nz gpg 8072 4F86 EDCD 4FC1 18EF 5BDD 07B0 9597 6D58 D70C _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

I'm new to the list. hopefully my question is correctly placed here... I'd installed my samba server 3.5.6 on debian squeeze in a openvz container that uses venet. I'd love to keep it that way but I'm not sure if that is ok. Do you use samba server with venet or do I have to change to veth? I already read http://wiki.openvz.org/Differences_between_venet_and_veth and I don't

Dear I need create second bridge xenbr1 for separate traffic between my virtual machine , I following this step but show message that Link veth0 is missing, how I can create veth0 ? When I run script for create xenbr1 ./network-bridge netdev=eth1 bridge=xenbr1 start Shwo this message Link veth0 is missing. This may be because you have reached the limit of the number of interfaces that the loopback driver supports. If the loopback d...

...or xen-hypervisor-3.0-unstable-1-amd64: If I choose the linux-image-2.6.16-2-xen-em64t-p4 as the dom0 kernel, the rebooting bug appears. If I choose the linux-image-2.6.17-2-amd64 as the dom0 kernel, I can enter the box. But when I run /etc/xen/scripts/network-bridge start, it told me that: Link veth0 is missing. This may be because you have reached the limit of the number of interfaces that the loopback driver supports. If the loopback driver is a module, you may raise this limit by passing it as a parameter (nloopbacks=<N>); if the driver is compiled statically into the kernel, then you...

...mesg |tail [ 8.265493] Bridge firewalling registered [ 8.514547] IPv6: ADDRCONF(NETDEV_UP): virbr0: link is not ready [ 8.645303] ip6_tables: (C) 2000-2006 Netfilter Core Team --- Then I do --- # virsh -c lxc:/// start gitolite Domain gitolite started # dmesg |tail [ 348.793398] device veth0 entered promiscuous mode [ 348.793553] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 348.997973] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 348.997998] virbr0: topology change detected, propagating [ 348.998001] virbr0: port 1(veth0) entered forwarding state [ 348.99800...

...,0,default,00:DE:AD:BE:EF,192.168.8.13/24,dhcp-off" but an ifconfig xenbr0 still shows the mac address of peth0 fe:ff:ff:ff:ff:ff. Initially, I had a bond interface on top of eth0 and eth1, the default route was via the bond interface. after rebooting the xen kernel, it saw a message that veth0 was missing, it said maybe because of not enough available loopback devices. I think more that this had to to with the bond0 interface. However, I followed the advice, and created some files below /etc/modprobe.d with following contents: cat /etc/modprobe.d/*loop options loop max_loop=64 options...

Ben Greear wrote: > Well, it seems we could and should fix veth to work, but it will have > to do equivalent work of copying an skb most likely, so either way > you'll probably get a big performance hit. Using the same pktgen script (i.e with clone=0) I see that a veth-->bridge-->veth configuration gives about 400K PPS forwarding performance where

Ben Greear wrote: > Well, it seems we could and should fix veth to work, but it will have > to do equivalent work of copying an skb most likely, so either way > you'll probably get a big performance hit. Using the same pktgen script (i.e with clone=0) I see that a veth-->bridge-->veth configuration gives about 400K PPS forwarding performance where

....10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:41:10.106+0000: 28362: error : virLXCControllerRun:1418 : error receiving signal from container: Input/output error 2012-11-08 12:41:10.222+0000: 24641: error : virNetDevSetOnline:536 : Cannot get interface flags on 'veth0': No such device 2012-11-08 12:41:10.227+0000: 24641: error : virNWFilterDHCPSnoopEnd:2131 : internal error ifname "veth0" not in key map 2012-11-08 12:41:10.229+0000: 24641: error : virNetDevGetIndex:653 : Unable to get index for interface veth0: No such device 2012-11-08 12:41:10.37...

When we create an L2 loop on a bridge in netns, we will see packets storm even if STP is enabled. # unshare -n # ip link add br0 type bridge # ip link add veth0 type veth peer name veth1 # ip link set veth0 master br0 up # ip link set veth1 master br0 up # ip link set br0 type bridge stp_state 1 # ip link set br0 up # sleep 30 # ip -s link show br0 2: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT gr...