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2016-10-05 03:51:31 -0500 asked a question DevStack installation-local.conf files

I want install multinode Openstack(Kilo) with DevStack(Controller, Compute, Neutron). In official website I could not find any proper local.conf file for Controller, Compute, Neutron. So, how to install multinode with DevStack and please provide templet local.conf file.

Thanks!

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2016-09-29 08:45:22 -0500 commented answer RuntimeError: Unable to create a new session key. It is likely that the cache is unavailable / Authorization failed. The request you have made requires authentication. from 10.0.0.11

Hi, Thanks for the help. I have changed to -l 0.0.0.0 in /etc/memcached.conf

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2016-02-27 07:28:04 -0500 asked a question Mirantis Openstack 7 Installation(ext4-fs (dm-7) mounted filesystem with ordered data mode. opts)

I try to install MirantisOpenStack-7.0.iso in virtual box with scripts. After reboot of successfull installation it was asked for settings like default password, NTP, Network(It was already configured!), I selected "save and Quite". Then after some time it is showing message "ext4-fs (dm-7) mounted filesystem with ordered data mode. opts" continuously.

Installation

2016-01-13 06:57:47 -0500 commented answer how to properly pass image argument to glance

I removed the quotes, but it is not working for me. Getting the same error! (Version: Kilo-[10-Jan-2016])

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2015-12-29 04:54:06 -0500 asked a question Packet Drop and Errors in Open-Vswitch

The Below command gives the port statistics like drop, error per port

ovs-ofctl dump-ports br-int

OFPST_PORT reply (xid=0x2): 7 ports
  port LOCAL: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=555357, bytes=29866282, drop=0, errs=0, coll=0
  port  5: rx pkts=48437828, bytes=1085685529, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=47423567, bytes=168324045, drop=0, errs=0, coll=0
  port  1: rx pkts=1149188262, bytes=1067940007509, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=541029895, bytes=1057151065791, drop=0, errs=0, coll=0
  port  4: rx pkts=59484910, bytes=3034674736, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=77364293, bytes=2320978598, drop=0, errs=0, coll=0
  port  6: rx pkts=38996668, bytes=4063078303, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=31341813, bytes=1036807399, drop=0, errs=0, coll=0
  port  2: rx pkts=60200091, bytes=3714792445, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=66625600, bytes=3953710366, drop=0, errs=0, coll=0
  port  3: rx pkts=93346595, bytes=2516933656, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=89882467, bytes=2298836596, drop=0, errs=0, coll=0

I tried this command sudo tc qdisc add dev qvo69331db5-96 root netem loss 50% corrupt 50%, But no use.

So, I want simulate the packet Errors, Drop per port. How can simulate?

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2015-12-21 23:53:10 -0500 answered a question how to configure Flexible NetFlow(or Sflow) on OVS) on ovs

Another way to configure sFlow:

COLLECTOR_IP=192.168.44.49
COLLECTOR_PORT=6343 
AGENT_IP=localhost
HEADER_BYTES=128
SAMPLING_N=64
POLLING_SECS=10

ovs-vsctl -- --id=@sflow create sflow agent=${AGENT_IP} \
target=\"${COLLECTOR_IP}:${COLLECTOR_PORT}\" header=${HEADER_BYTES} \
sampling=${SAMPLING_N} polling=${POLLING_SECS} -- set bridge br-int sflow=@sflow

To remove sFlow use following command:

ovs-vsctl remove bridge <BRIDGE NAME> sflow <sFlow UUID>

To view sFlow configuration:

 ovs-vsctl list sflow

Here is the some sFlow Collectors(GUI): Here

If you want a tool like "nfdump"(Analyzer Tool for Netflow), you can use this: http://blog.sflow.com/2011/12/sflowto...

http://blog.sflow.com/2012/01/forward...

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2015-12-21 04:38:23 -0500 asked a question Open vswitch Control Plane problems?

Is there any problems we may face with Open vswitch Control Plane. Means, I want to know some metrics for OVS control plane. how, one can diagnose OVS control plane problems in openstack. There is no controller for OVS in openstack so, what problems may arise?

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2015-12-21 00:51:52 -0500 commented question How control plane works for OVS in openstack?

Thanks aksan!

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2015-12-20 10:10:55 -0500 asked a question How control plane works for OVS in openstack?

In SDN, there will be controller(Generally!). So, controller uses the OpenFlow protocol to send the Flows to OVS(Control Plane). Once OVS got the Intelligence, forwards the packets according to that. But in Openstack, there is no controller and how switch got the flows(Control Plane) when VM is launched and plugged to int-br in computer node?

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2015-12-10 02:24:08 -0500 asked a question How VMs will communicate in Openstack(Packet Flow)

Our configuration:

VM Name           Internal IP      Floating IP
***************************************************
MySQL              10.0.5.15            -
Apache2            10.0.5.14        172.25.1.142
Apache1            10.0.5.16            -
VM-11(HaProxy)     10.0.5.7         172.25.1.144
jmeter             10.0.5.17            -

Router Gateway     172.25.1.132(From "neutron router-list" command)

Server5 - Neutron

Server1 - Controller + Compute

We configured Netflow on "int-br"(OVS) in Server1 and Server5

Now, the dummy request are sending continuously from jmeter(10.0.5.17) to HaProxy(172.25.1.144)

What we saw in Netflow(nfdump -r FILE)

On Server1


Bridge's   Source IP   Source  Bridge's  Destination   Destination  Protocol
Ingress                Port    Egress        IP             Port
Port                           Port
*****************************************************************************************
4614        10.0.5.17  39781   4611      172.25.1.144     80          TCP
4610         10.0.5.7     80   4611      172.25.1.132   39781         TCP

On Server5

15371     172.25.1.132  33675  15362         10.0.5.7     80         TCP
15371     172.25.1.144     80  15362        10.0.5.17  33675         TCP

So, What is the packet flow here? Where the NAT translations are happening?

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2015-10-19 07:51:35 -0500 asked a question how to configure Flexible NetFlow(or Sflow) on OVS) on ovs

How to configure Collector and Exporter to get the Netflow on OVS.

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