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Problem with "interface vlan" on 5500EI

 
Highlighted
Occasional Advisor

Problem with "interface vlan" on 5500EI

Hello.

I setup local ip interface on openflow vlan (openflow-only mode not hybrid) on 5500EI (5.20.99 R2221P02).
The interface is not working and generate many openflow errors.

Partial config:

vlan 10
#
interface Vlan-interface10
 ip address 10.10.10.101 255.255.255.0
#
openflow instance 10
 controller 1 address ip 192.168.56.7
 description vlan10
 classification vlan 10
#

 

Interface is "visible" in openflow instance as "VLAN10" (see vlanif_ports.png).
There is many errors on setup and discovery (see vlanif_setup_1.png and vlanif_setup_2.png) (It should be corrected too.).
The main problem is simple ping (see vlanif_ping.png):

1) ping begins with arp request/response (host is connected on port2 and ip is 10.10.10.15, vlan10 interface on switch have ip 10.10.10.101)
 - 22:28:46.751 - arp request accepted from switch (PACKET_IN)
 - 22:28:46.755 - flooded (PACKET_OUT)
 - 22:28:46.756 - arp resonse accepted (PACKET_IN)
 - 22:28:46.758 - flooded (PACKET_OUT)

2) problem A
 - 22:28:46.844 - unexpected error for flooded packet (22:28:46.758), but the host received the packet without problem, on switch there was no debug  error message (debugging openflow error + terminal debugging).

3) now the host has mapping ip/mac address and send icmp ping
 - 22:28:52.012 - icmp echo request accepted from switch (PACKET_IN)
 - 22:28:52.012 - flooded (PACKET_OUT)

4) problem B
 - 22:28:52.018 -  unexpected error for flooded packet (22:28:52.012), packed does not continue to destination and response (icmp echo pong) is not generated

Questions:

1) How to interpret errors "Type: OFPET_BAD_REQUEST (1)/Code: OFPBRC_EPERM (5)" ?
2) Is it needed to reconfigure something on switch or it is a firmware bug ?

3) Is the "VLAN10" interface useful (eg. Can it be used as routing destination output port instead of action "NORMAL" ?) ?

There is also other useful files other.zip:
- vlanif_ping.pcapng
- vlanif_setup.pcapng
- there are screenshots of correct communication on the same switch between two host (hwif_*)

Additional questions for normal correct flows (see hwif_ping.png in other.zip):

+1) Why pathdeamon connect "arp" path after arp request/response from both sides (eg. after 4 packets - 20:58:30.650). I think the there is possibility to connect "arp-path" and "ip-path" after first arp response ?
+2) There is the same situation for "ip-path" (after ip packet flooded from on side to another - 20:58:30.861 + 20:58:31.605). Arp is not sufficient or secure ?

Thanks for answers, Martin Cerveny

1 REPLY 1
Highlighted
Trusted Contributor

Re: Problem with "interface vlan" on 5500EI

Hello Martin Cerveny,

Thanks for your query.
We will get back to you shortly.

Thanks,
HP SDN Team