Manoj,
Because system B is running VPP, you can’t initiate the ping from system B in
Unix Shell. Kernel does not have that interface and IP address anymore for you
to do the ping. You have to start the ping from vppctl if you want to do the
ping from system B running VPP.
When you do the ping from system A, type
vppctl show error
vppctl show interface
may help you to find out why the packet got dropped or if it arrives at all to
VPP. If that still does not help, take the trace from VPP. Something like this
vppctl trace add dpdk-input 100
ping 10.1.1.10 <-- ping rom system A
vppctl show trace
Honestly, I’ve never worked with a Broadcom NIC which you are using.
tx burst function: bnxt_xmit_pkts
rx burst function: bnxt_recv_pkts
May the force be with you.
Steven
From: Manoj Iyer <[email protected]>
Date: Monday, June 15, 2020 at 7:48 AM
To: "Dave Barach (dbarach)" <[email protected]>, "Steven Luong (sluong)"
<[email protected]>, "[email protected]" <[email protected]>
Subject: Re: [vpp-dev] Need help with setup.. cannot ping a VPP interface.
Dave/Steven,
I set the netmask on both sides to 255.255.255.0 and here is how I setup the ip
address on the 2 servers. System-B has ip address set using vppctl and system-A
was setup using ifconfig, as below. The link is up on both enp2s0f1np1 on
System A and bnxt0 on System B. VPP version used is 20.05.
Also on System B where I setup 10.1.1.10 as the IP address on the VPP interface
bnxt0, I was not able to ping that IP from the host system (System B). Please
see below towards the end where this ping fails.
(Also, I setup the exact same physical interfaces without using VPP and was
able to ping each other.)
== System A ==
$ sudo ifconfig enp2s0f1np1 10.1.1.11 netmask 255.255.255.0 up
$ ifconfig enp2s0f1np1
enp2s0f1np1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.1.1.11 netmask 255.255.255.0 broadcast 10.1.1.255
ether b0:26:28:82:09:cd txqueuelen 1000 (Ethernet)
RX packets 635 bytes 183934 (183.9 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 150 bytes 20610 (20.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
$ ethtool enp2s0f1np1
Settings for enp2s0f1np1:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
25000baseCR/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 10000Mb/s
Duplex: Full
Port: Direct Attach Copper
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000000 (0)
Link detected: yes
== System B (vppctl for ip setup ) ==
$ sudo vppctl set int ip address bnxt0 10.1.1.10/24
$ sudo vppctl show interface address
bnxt0 (up):
L3 10.1.1.10/24
bnxt1 (dn):
bnxt2 (dn):
bnxt3 (dn):
local0 (dn):
$ sudo vppctl show hardware
Name Idx Link Hardware
bnxt0 1 up bnxt0
Link speed: 10 Gbps
Ethernet address 00:10:18:ad:05:00
Broadcom NetXtreme E/S-Series
carrier up full duplex mtu 9206
flags: admin-up pmd tx-offload rx-ip4-cksum
Devargs:
rx: queues 3 (max 73), desc 512 (min 16 max 8192 align 1)
tx: queues 4 (max 73), desc 512 (min 16 max 4096 align 1)
pci: device 14e4:d804 subsystem 14e4:8040 address 0008:01:00.00 numa 0
max rx packet len: 9600
promiscuous: unicast off all-multicast on
vlan offload: strip on filter off qinq off
rx offload avail: vlan-strip ipv4-cksum udp-cksum tcp-cksum tcp-lro
outer-ipv4-cksum vlan-filter vlan-extend jumbo-frame
scatter timestamp keep-crc rss-hash
rx offload active: vlan-strip ipv4-cksum
tx offload avail: vlan-insert ipv4-cksum udp-cksum tcp-cksum tcp-tso
outer-ipv4-cksum qinq-insert vxlan-tnl-tso gre-tnl-tso
ipip-tnl-tso geneve-tnl-tso multi-segs
tx offload active: vlan-insert ipv4-cksum udp-cksum tcp-cksum tcp-tso
outer-ipv4-cksum vxlan-tnl-tso gre-tnl-tso ipip-tnl-tso
geneve-tnl-tso multi-segs
rss avail: ipv4-tcp ipv4-udp ipv4 ipv6-tcp ipv6-udp ipv6
rss active: ipv4-tcp ipv4-udp ipv4 ipv6-tcp ipv6-udp ipv6
tx burst function: bnxt_xmit_pkts
rx burst function: bnxt_recv_pkts
== Ping System A from System B ==
$ ping -c1 10.1.1.11
PING 10.1.1.11 (10.1.1.11) 56(84) bytes of data.
--- 10.1.1.11 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms
== Ping System B from System A ==
$ ping -c1 10.1.1.10
PING 10.1.1.10 (10.1.1.10) 56(84) bytes of data.
From 10.1.1.11 icmp_seq=1 Destination Host Unreachable
--- 10.1.1.10 ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
== Ping System A interface from System A ==
$ ping -c1 10.1.1.11
PING 10.1.1.11 (10.1.1.11) 56(84) bytes of data.
64 bytes from 10.1.1.11: icmp_seq=1 ttl=64 time=0.033 ms
--- 10.1.1.11 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.033/0.033/0.033/0.000 ms
== Ping System B interface from System B ==
$ ping -c1 10.1.1.10
PING 10.1.1.10 (10.1.1.10) 56(84) bytes of data.
--- 10.1.1.10 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms
Thanks
Manoj Iyer
________________________________
From: Dave Barach (dbarach) <[email protected]>
Sent: Friday, June 12, 2020 3:21 PM
To: Steven Luong (sluong) <[email protected]>; Manoj Iyer <[email protected]>;
[email protected] <[email protected]>
Subject: RE: [vpp-dev] Need help with setup.. cannot ping a VPP interface.
+check hardware addresses with “show hardware”, to make sure you’ve configured
the interface which is actually connected to the peer system / switch...
HTH... Dave
From: [email protected] <[email protected]> On Behalf Of steven luong via
lists.fd.io
Sent: Friday, June 12, 2020 4:18 PM
To: Manoj Iyer <[email protected]>; [email protected]
Subject: Re: [vpp-dev] Need help with setup.. cannot ping a VPP interface.
Please correct the subnet mask first.
L3 10.1.1.10/24. <-- system A
inet 10.1.1.11 netmask 255.0.0.0 broadcast 10.255.255.255 <--- system B
Steven
From: <[email protected]<mailto:[email protected]>> on behalf of Manoj Iyer
<[email protected]<mailto:[email protected]>>
Date: Friday, June 12, 2020 at 12:28 PM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: [vpp-dev] Need help with setup.. cannot ping a VPP interface.
Hello,
I am very new to VPP and I am having trouble pinging the vpp interface. I have
a system with ip address 10.1.1.10 set up using a VPP interface, and I have
another system with ip address 10.1.1.11 setup with no VPP. Both systems are
connected though a switch.
If I do not use VPP I am able to ping each other, but when I use VPP to
configure one of the IPs I am unable to ping.
I know this might be a very basic setup issue. Could someone please point me in
the right direction. I have read through
https://wiki.fd.io/view/VPP/How_To_Connect_A_PCI_Interface_To_VPP
== on system A ==
$ sudo vppctl show interface address
bnxt0 (dn):
bnxt1 (dn):
bnxt2 (dn):
bnxt3 (up):
L3 10.1.1.10/24
local0 (dn):
$ sudo vppctl show interface
Name Idx State MTU (L3/IP4/IP6/MPLS)
Counter Count
bnxt0 1 down 9000/0/0/0
bnxt1 2 down 9000/0/0/0
bnxt2 3 down 9000/0/0/0
bnxt3 4 up 9000/0/0/0 rx packets
498
rx bytes
74839
drops
498
ip4
112
ip6
188
local0 0 down 0/0/0/0
== on system B ==
$ ifconfig enp2s0f2np0
enp2s0f2np0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.1.1.11 netmask 255.0.0.0 broadcast 10.255.255.255
ether b0:26:28:82:09:ce txqueuelen 1000 (Ethernet)
RX packets 250 bytes 59677 (59.6 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 103 bytes 15583 (15.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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