When two interfaces are in the linux, ping works.
On R740, we have
root@esdn-lab:~/gnxi/perf_testing/r740/vpp# ip a s eno3
4: eno3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group
default qlen 1000
link/ether 24:6e:96:b4:b2:06 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.11/24 scope global eno3
valid_lft forever preferred_lft forever
inet6 fe80::266e:96ff:feb4:b206/64 scope link
valid_lft forever preferred_lft forever
root@esdn-lab:~/gnxi/perf_testing/r740/vpp#
On R230, we have
root@esdn-relay:~/gnxi/perf_testing/r230# ip a s enp6s0f1
5: enp6s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP
group default qlen 1000
link/ether b4:96:91:23:1e:d6 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.10/24 scope global enp6s0f1
valid_lft forever preferred_lft forever
inet6 fe80::b696:91ff:fe23:1ed6/64 scope link
valid_lft forever preferred_lft forever
root@esdn-relay:~/gnxi/perf_testing/r230# ping -I enp6s0f1 10.10.10.11
PING 10.10.10.11 (10.10.10.11) from 10.10.10.10 enp6s0f1: 56(84) bytes of
data.
64 bytes from 10.10.10.11: icmp_seq=1 ttl=64 time=0.101 ms
64 bytes from 10.10.10.11: icmp_seq=2 ttl=64 time=0.099 ms
64 bytes from 10.10.10.11: icmp_seq=3 ttl=64 time=0.099 ms
^C
--- 10.10.10.11 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2028ms
rtt min/avg/max/mdev = 0.099/0.099/0.101/0.011 ms
root@esdn-relay:~/gnxi/perf_testing/r230#
On Thu, Oct 17, 2019 at 3:17 PM Florin Coras <fcoras.li...@gmail.com> wrote:
> Hi Chuan,
>
> As Balaji said, probably it’s worth making sure the cable between the eth0
> nics is fine and that eth0 on R230 works as expected. For instance, you
> could double check your setup by switching to linux drivers and trying a
> ping between the two boxes.
>
> Regarding “sh int”, it only shows the admin status of the interface. To
> see the link status, as Damjan explained, you have to use the “show
> hardware” cli.
>
> Hope this helps,
> Florin
>
> On Oct 17, 2019, at 3:08 PM, Balaji Venkatraman via Lists.Fd.Io <
> balajiv=cisco....@lists.fd.io> wrote:
>
> Hi Chuan,
> I got the eth0 and eth1 mixed up. My bad.
> Are these fiber or copper links? You may want to check if the cable is ok.
> Also, please make sure you have crossover cable(if RJ) between the servers.
>
> Thanks!
> --
> Regards,
> Balaji.
>
>
> *From: *Chuan Han <chuan...@google.com>
> *Date: *Thursday, October 17, 2019 at 2:41 PM
> *To: *"Balaji Venkatraman (balajiv)" <bala...@cisco.com>
> *Cc: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Arivudainambi Appachi
> gounder <aappa...@google.com>, Jerry Cen <zhiw...@google.com>
> *Subject: *Re: [vpp-dev] Basic l2 bridging does not work
>
> Restarting ixia controller does not help. We ended up with both ixia ports
> having '!'.
>
> We are not sure how ixia port plays a role here. eth0 interfaces are the
> interfaces connecting two servers, not to ixia.
>
> On Thu, Oct 17, 2019 at 11:26 AM Balaji Venkatraman (balajiv) <
> bala...@cisco.com> wrote:
>
> Hi Chuan,
>
> Could you please try to reset the ixia controller connected to port 4?
> I have seen issues with ‘!’ on ixia. Given the carrier on eth0 is down, I
> suspect the ixia port.
>
> --
> Regards,
> Balaji.
>
>
> *From: *Chuan Han <chuan...@google.com>
> *Date: *Thursday, October 17, 2019 at 11:09 AM
> *To: *"Balaji Venkatraman (balajiv)" <bala...@cisco.com>
> *Cc: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Arivudainambi Appachi
> gounder <aappa...@google.com>, Jerry Cen <zhiw...@google.com>
> *Subject: *Re: [vpp-dev] Basic l2 bridging does not work
>
> Yes. It is unidirectional stream from port 1 to port 4.
>
> Another engineer, Nambi, configured ixia. What he showed me yesterday is
> that xia port connected to port 1 is green and good. ixia port connected to
> port 4 is green but has a red exclamation mark, which means ping does not
> work.
>
> We also found eth0 on R230 is down shown by "show hardware eth0" command.
> However "show int" shows it is up.
>
>
> vpp# sh hardware-interfaces eth0
> Name Idx Link Hardware
> eth0 2 down eth0
> Link speed: unknown
> Ethernet address b4:96:91:23:1e:d6
> Intel 82599
> carrier down
> flags: admin-up promisc pmd rx-ip4-cksum
> rx: queues 1 (max 128), desc 512 (min 32 max 4096 align 8)
> tx: queues 3 (max 64), desc 512 (min 32 max 4096 align 8)
> pci: device 8086:154d subsystem 8086:7b11 address 0000:06:00.01 numa 0
> max rx packet len: 15872
> promiscuous: unicast on all-multicast on
> vlan offload: strip off filter off qinq off
> rx offload avail: vlan-strip ipv4-cksum udp-cksum tcp-cksum tcp-lro
> macsec-strip vlan-filter vlan-extend jumbo-frame
> scatter
> security keep-crc
> rx offload active: ipv4-cksum
> tx offload avail: vlan-insert ipv4-cksum udp-cksum tcp-cksum
> sctp-cksum
> tcp-tso macsec-insert multi-segs security
> tx offload active: none
> rss avail: ipv4-tcp ipv4-udp ipv4 ipv6-tcp-ex ipv6-udp-ex
> ipv6-tcp
> ipv6-udp ipv6-ex ipv6
> rss active: none
> tx burst function: (nil)
> rx burst function: ixgbe_recv_pkts_vec
>
> rx frames ok 33278
> rx bytes ok 3960082
> extended stats:
> rx good packets 33278
> rx good bytes 3960082
> rx q0packets 33278
> rx q0bytes 3960082
> rx size 65 to 127 packets 33278
> rx multicast packets 33278
> rx total packets 33278
> rx total bytes 3960082
> vpp# sh int
> Name Idx State MTU (L3/IP4/IP6/MPLS)
> Counter Count
> eth0 2 up 9000/0/0/0 rx
> packets 33279
> rx
> bytes 3960201
> drops
> 5
> punt
> 1
>
> tx-error 33274
> eth1 1 up 9000/0/0/0 rx
> packets 33274
> rx
> bytes 3959606
> tx
> packets 33273
> tx
> bytes 3959487
> drops
> 33274
>
> tx-error 3
> local0 0 down 0/0/0/0
> vpp#
>
> On Thu, Oct 17, 2019 at 10:54 AM Balaji Venkatraman (balajiv) <
> bala...@cisco.com> wrote:
>
> Hi Chuan,
>
> I assume u have unidirectional stream ? ixia->1->2->3->4->ixia?
>
>
> vpp# sh int
> Name Idx State MTU (L3/IP4/IP6/MPLS)
> Counter Count
> eth0 2 up 9000/0/0/0 rx
> packets 30925
> rx
> bytes 3680075
> drops
> 5
> punt
> 1
>
> tx-error 30920
> eth1 1 up 9000/0/0/0 rx
> packets 30920 <<< packets are received on port 3
> rx
> bytes 3679480
> tx
> packets 30919
> tx
> bytes 3679361
> drops
> 30920 <<< all dropped at port 3
>
> tx-error 3
> local0 0 down 0/0/0/0
>
> On sh error logs on R 230 we see
>
> 1 ethernet-input l3 mac mismatch <<<<
> 3 eth1-output interface is down
> 30922 eth0-output interface is down
>
>
> Do u see the arp getting resolved on ixia? The mac on ixia at port with
> 172.16.1.2/24 should be seen on its other port. Are the ixia ports up at
> both ends?
>
>
> --
> Regards,
> Balaji.
>
>
> *From: *<vpp-dev@lists.fd.io> on behalf of "Chuan Han via Lists.Fd.Io
> <http://lists.fd.io/>" <chuanhan=google....@lists.fd.io>
> *Reply-To: *"chuan...@google.com" <chuan...@google.com>
> *Date: *Thursday, October 17, 2019 at 9:59 AM
> *To: *"Balaji Venkatraman (balajiv)" <bala...@cisco.com>
> *Cc: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
> *Subject: *Re: [vpp-dev] Basic l2 bridging does not work
>
> It seems R740 vpp works fine. All packets coming from port 1 go to port 2.
>
> vpp# sh int
> Name Idx State MTU (L3/IP4/IP6/MPLS)
> Counter Count
> eth0 2 up 9000/0/0/0 tx
> packets 30895
> tx
> bytes 3676505
> eth1 1 up 9000/0/0/0 rx
> packets 30895
> rx
> bytes 3676505
> local0 0 down 0/0/0/0
> vpp# sh int
> Name Idx State MTU (L3/IP4/IP6/MPLS)
> Counter Count
> eth0 2 up 9000/0/0/0 tx
> packets 30897
> tx
> bytes 3676743
> eth1 1 up 9000/0/0/0 rx
> packets 30897
> rx
> bytes 3676743
> local0 0 down 0/0/0/0
> vpp# sh error
> Count Node Reason
> 30899 l2-output L2 output packets
> 30899 l2-learn L2 learn packets
> 1 l2-learn L2 learn misses
> 30899 l2-input L2 input packets
> 30899 l2-flood L2 flood packets
> vpp#
>
> The drop happened on R230 vpp. Port 3 dropped all pkts complaining about
> down interface. However, show command shows interfaces are up.
>
> vpp# sh int
> Name Idx State MTU (L3/IP4/IP6/MPLS)
> Counter Count
> eth0 2 up 9000/0/0/0 rx
> packets 30925
> rx
> bytes 3680075
> drops
> 5
> punt
> 1
>
> tx-error 30920
> eth1 1 up 9000/0/0/0 rx
> packets 30920
> rx
> bytes 3679480
> tx
> packets 30919
> tx
> bytes 3679361
> drops
> 30920
>
> tx-error 3
> local0 0 down 0/0/0/0
> vpp# sh error
> Count Node Reason
> 2 llc-input unknown llc ssap/dsap
> 61846 l2-output L2 output packets
> 61846 l2-learn L2 learn packets
> 2 l2-learn L2 learn misses
> 61846 l2-input L2 input packets
> 61846 l2-flood L2 flood packets
> 1 ethernet-input l3 mac mismatch
> 3 eth1-output interface is down
> 30922 eth0-output interface is down
> vpp#
>
> Not sure how to check mac issues. Can you explain a bit more? Here is what
> I can see on R230 vpp.
>
> vpp# show bridge-domain 1 detail
> BD-ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding
> ARP-Term arp-ufwd BVI-Intf
> 1 1 0 off on on flood on
> off off N/A
>
> Interface If-idx ISN SHG BVI TxFlood
> VLAN-Tag-Rewrite
> eth0 2 1 0 - *
> none
> eth1 1 1 0 - *
> none
> vpp# sh l2fib verbose
> Mac-Address BD-Idx If-Idx BSN-ISN Age(min) static filter bvi
> Interface-Name
> 28:99:3a:f4:3a:a6 1 2 0/1 - - - -
> eth0
> 28:99:3a:f4:3a:9c 1 1 0/1 - - - -
> eth1
> L2FIB total/learned entries: 2/2 Last scan time: 0.0000e0sec Learn
> limit: 4194304
> vpp#
>
> On Wed, Oct 16, 2019 at 6:01 PM Balaji Venkatraman (balajiv) <
> bala...@cisco.com> wrote:
>
> +-------------------------------------------------------------------------+
> | |
> | |
> | IXIA |
> | |
> | |
> +-----------------------------------------------------------^-------------+
> |172.16.1.1/24 |172.16.1.2/24
> | |
> | |
> |eth0 | eth0
> +-----------v-------------+ +------------+-----------+
> | 1 | | 4 |
> | | | |
> | | | |
> | | | |
> | |eth1 eth1 | |
> | VPP1 2 +--------------------> 3 VPP 2 |
> | | | |
> | | | |
> | | | |
> | | | |
> +-------------------------+ +------------------------+
> R 740 R 230
>
>
> Might help if you could check if the packet counts at ingress (port 1) &
> egress (port 2) match. Similarly 3 & 4. And the mac entries seen on both
> vpp(s). ARP req/rep tracing might also help.
>
>
> /-
> Balaji
>
>
>
>
> *From: *<vpp-dev@lists.fd.io> on behalf of "Damjan Marion via Lists.Fd.Io
> <http://lists.fd.io/>" <dmarion=me....@lists.fd.io>
> *Reply-To: *"dmar...@me.com" <dmar...@me.com>
> *Date: *Wednesday, October 16, 2019 at 5:12 PM
> *To: *"chuan...@google.com" <chuan...@google.com>
> *Cc: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
> *Subject: *Re: [vpp-dev] Basic l2 bridging does not work
>
>
>
> On 16 Oct 2019, at 16:14, Chuan Han via Lists.Fd.Io <http://lists.fd.io/><
> chuanhan=google....@lists.fd.io> wrote:
>
> Hi, vpp experts,
>
> We are trying to make basic l2 bridge works within vpp.
>
> We have two servers: r230 and r740, each of which has two phy nics. Two
> servers are connected via cable. On each server, we bring these two nics
> into the same vpp instance and put them into the same l2 bridge. We tried
> sending traffic using ixia. However, ixia shows ping does not work.
>
> I attached the topology, vpp conf files, startup conf file, and logs.
>
> Please advise where we could make it wrong.
>
> Thanks.
> Chuan
> <r230 vpp.conf><r740 vpp.conf><r230 vpp startup.cfg><r740 vpp
> startup.cfg><r740.log><r230.log><vpp testbed -
> bridge.pdf>-=-=-=-=-=-=-=-=-=-=-=-
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>
>
> On the 1st look everything look ok including the packet trace.
> Can you try to clear counters* and enable packet trace on both instances.
> Then send known number of packets and find put where drop happens by
> looking into same outputs you already shared.....
>
> * "clear int", "clear run", "clear trace"
>
> --
> Damjan
>
>
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