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<http://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"
<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<mailto:bala...@cisco.com>> wrote:
+-------------------------------------------------------------------------+
| |
| |
| IXIA |
| |
| |
+-----------------------------------------------------------^-------------+
|172.16.1.1/24<http://172.16.1.1/24>
| 172.16.1.2/24<http://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<mailto:vpp-dev@lists.fd.io>> on behalf of "Damjan
Marion via Lists.Fd.Io<http://Lists.Fd.Io>"
<dmarion=me....@lists.fd.io<mailto:me....@lists.fd.io>>
Reply-To: "dmar...@me.com<mailto:dmar...@me.com>"
<dmar...@me.com<mailto:dmar...@me.com>>
Date: Wednesday, October 16, 2019 at 5:12 PM
To: "chuan...@google.com<mailto:chuan...@google.com>"
<chuan...@google.com<mailto:chuan...@google.com>>
Cc: "vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io>"
<vpp-dev@lists.fd.io<mailto: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<mailto: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>-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#14189): https://lists.fd.io/g/vpp-dev/message/14189
Mute This Topic: https://lists.fd.io/mt/34655826/675642
Group Owner: vpp-dev+ow...@lists.fd.io<mailto:vpp-dev+ow...@lists.fd.io>
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub
[dmar...@me.com<mailto:dmar...@me.com>]
-=-=-=-=-=-=-=-=-=-=-=-
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
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#14206): https://lists.fd.io/g/vpp-dev/message/14206
Mute This Topic: https://lists.fd.io/mt/34655826/21656
Group Owner: vpp-dev+ow...@lists.fd.io
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
