From: Hooman Parta (hooman@voipsol.com)
Date: Fri Apr 07 2006 - 12:13:29 GMT-3
It is going to use ASIC on the switch board so you do not need to have it
connected and as you are defining that VLAN as RSPAN, there is no need to
assign it any where. If it does, it would be some where on the documetns. I
can not find any where. Document CD has a detail configuartion guide on
this.
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225seb/scg/swspa
n.htm#wp1129034
I will test it on my LAB and let you know for sure.
-----Original Message-----
From: Alexei Monastyrnyi [mailto:alexeim@orcsoftware.com]
Sent: Friday, April 07, 2006 9:56 AM
To: Hooman Parta
Cc: 'Schulz, Dave'; 'Nick Griffin'; 'Faryar Zabihi (fzabihi)'; 'Roberto
Fernandez'; ccielab@groupstudy.com
Subject: Re: What is a Reflector-Port on RSPAN ?
he doesn't say about reflector port settings... I mean regarding specific I
asked....
or do you, Scott?
on 07/04/2006 16:49 Hooman Parta wrote:
> Check Scott's Audio series, it is one of the best. You will learn it
> within 30 minutes.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of Schulz, Dave
> Sent: Friday, April 07, 2006 9:04 AM
> To: Alexei Monastyrnyi; Nick Griffin
> Cc: Faryar Zabihi (fzabihi); Roberto Fernandez; ccielab@groupstudy.com
> Subject: RE: What is a Reflector-Port on RSPAN ?
>
> The reflector port just needs to be any unused port. The state of the
> port should not be an issue, since just the ASIC of the port is used.
> Anything connected to the port will be disconnected.
>
>
> Dave Schulz,
> Email: dschulz@dpsciences.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of Alexei Monastyrnyi
> Sent: Friday, April 07, 2006 3:53 AM
> To: Nick Griffin
> Cc: Faryar Zabihi (fzabihi); Roberto Fernandez; ccielab@groupstudy.com
> Subject: Re: What is a Reflector-Port on RSPAN ?
>
> Thanks!
>
> But still this reflector port needs to be on-line, connected, or?
> Logically it shouldn't require that since all it needs is an ability
> to use interface ASICs internally to reflect packets, which does not
> imply that any link signal needs to be on the interface.
>
> Anyway, better try when I have two switches..
>
> Or Petr L,
> I know you have 2 of 3550.... Could you please lab it up?
>
> Cheers,
> A.
>
> on 07/04/2006 02:55 Nick Griffin wrote:
>
>> If I understand you correctly, no you do not need to enter "sw access
>> vlan 44", the reflector port is used to loop the traffic your
>> monitoring from your source port/vlan, out the interface, back in and
>> onto the remote span vlan. Configuring the "reflector port"
>> effectively disables it just as if were a local port used in a local
>> span session. Unless I'm not catching what your throwing.
>>
>>
>>
>> Alexei Monastyrnyi wrote:
>>
>>> Thanks, but it didn't make things clear for me... sorry.
>>> Let me put it tis way.
>>> If RSPAN VLAN is 444, and reflector port is fa 0/21 - do I have to
>>> do
>>>
>>> in fa 0/21
>>> sw acc vlan 444
>>>
>>> Does this reflector port need to be in "connected" status?
>>>
>>> Very practical questions, cause you don't have a way to test this
>>> config on real lab so you have to know what port to pick as a
>>> reflector port and how this port should be configured. This part is
>>> missing on DocCD section regarding RSPAN, ... or I cannot read it.
>>>
>>> I used a lot of SPAN sessions within one switch for my work, but
>>> never RSPAN and in my current lab there is only one 3550 so cannot
>>> lab it up.
>>>
>>> A.
>>>
>>> ----- Original Message ----- From: "Faryar Zabihi (fzabihi)"
>>> <fzabihi@cisco.com>
>>> To: "Alexei Monastyrnyi" <alexeim@orcsoftware.com>; "Roberto
>>> Fernandez" <rofernandez@us.telefonica.com>; <ccielab@groupstudy.com>
>>> Sent: Thursday, April 06, 2006 10:54 PM
>>> Subject: RE: What is a Reflector-Port on RSPAN ?
>>>
>>>
>>> 1. Any access ports configured into an RSPAN VLAN shall become
>>> inactive and remain in that state until either the ports are
>>>
> configured
>
>>> into another VLAN or the VLAN is no longer an RSPAN VLAN.
>>>
>>>
>>>
>>> 2. Learning is disabled in RSPAN VLANs. This ensures that traffic is
>>> flooded to all the trunk ports in the VLAN.
>>>
>>>
>>>
>>> 3. Trunk ports carry RSPAN VLAN traffic like that of any other VLAN.
>>> VTP pruning supports pruning of RSPAN VLAN traffic on trunk
>>>
> ports.
>
>>>
>>> 4. STP is enabled for all ports in the RSPAN VLAN, to support link
>>> redundancy while avoiding loops.
>>>
>>>
>>> Faryar Zabihi
>>>
>>>
>>> -----Original Message-----
>>> From: Alexei Monastyrnyi [mailto:alexeim@orcsoftware.com]
>>> Sent: Thursday, April 06, 2006 1:47 PM
>>> To: Faryar Zabihi (fzabihi); Roberto Fernandez;
>>>
> ccielab@groupstudy.com
>
>>> Subject: Re: What is a Reflector-Port on RSPAN ?
>>>
>>> is that relevant if the reflector port belongs to that special
>>> RSPAN VLAN?
>>>
>>> A.
>>>
>>> ----- Original Message -----
>>> From: "Faryar Zabihi (fzabihi)" <fzabihi@cisco.com>
>>> To: "Roberto Fernandez" <rofernandez@us.telefonica.com>;
>>> <ccielab@groupstudy.com>
>>> Sent: Thursday, April 06, 2006 9:01 PM
>>> Subject: RE: What is a Reflector-Port on RSPAN ?
>>>
>>>
>>>
>>>> Good doc on rspan...there is a section on reflector-ports
>>>>
>>>>
> http://www.cisco.com/en/US/products/hw/switches/ps663/products_configu
>
>>>> ra tion_guide_chapter09186a0080176332.html
>>>>
>>>>
>>>> Faryar Zabihi
>>>>
>>>> -----Original Message-----
>>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
>>>> Behalf Of Roberto Fernandez
>>>> Sent: Thursday, April 06, 2006 10:21 AM
>>>> To: ccielab@groupstudy.com
>>>> Subject: What is a Reflector-Port on RSPAN ?
>>>>
>>>> Friends,
>>>>
>>>> Quick question:
>>>>
>>>> What is a reflector-port in regards to the RSPAN configuration? I'm
>>>> confused on this.
>>>>
>>>> Best Regards,
>>>> Roberto
>>>>
>>>>
>>>>
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