Re: ISIS Hello Interval

That explains that

--- On Sat, 10/9/10, srinivas pv <vsrinivas.paturi_at_gmail.com> wrote:

From: srinivas pv <vsrinivas.paturi_at_gmail.com>
Subject: Re: ISIS Hello Interval
To: "John Pelletier" <john.pelletier_at_altima-group.com>
Cc: "Edward John" <edwardjohn2020_at_googlemail.com>, "Cisco certification"
<ccielab_at_groupstudy.com>, "Cisco certification" <cisco_at_groupstudy.com>
Date: Saturday, October 9, 2010, 5:04 AM

In Service Provider, you can find ISIS.
Thanks,Srinivas

On Sat, Oct 9, 2010 at 12:07 PM, John Pelletier
<john.pelletier_at_altima-group.com> wrote:

I don't see ISIS on the most recent R&S v4.0 blue print.

--- On Fri, 10/8/10, srinivas pv <vsrinivas.paturi_at_gmail.com> wrote:

From: srinivas pv <vsrinivas.paturi_at_gmail.com>

Subject: Re: ISIS Hello Interval

To: "Edward John" <edwardjohn2020_at_googlemail.com>

Cc: "Cisco certification" <ccielab_at_groupstudy.com>, "Cisco certification"

<cisco_at_groupstudy.com>

Date: Friday, October 8, 2010, 3:34 AM

Hi,

hell-interval value (is-is hell-interval) is in seconds.

Now why they need to configure 58, when to configure 19 sec as

hello-interval?

On DIS interfaces, only one third of the configured value is used. Please

see 'Note' below

http://www.cisco.com/en/US/docs/ios/iproute_isis/command/reference/irs_is1.h
t

ml#wp1013730

So it may be DIS interface here. But still value of 57 is sufficient, not

sure why 58.

Thanks,

Srinivas

On Fri, Oct 8, 2010 at 1:13 AM, Edward John

<edwardjohn2020_at_googlemail.com>wrote:

> Dear Experts,

>

> What is the unit of Hello-interval value shown under the interface?

> Seconds or a Numeric factor..

>

> While I am doing IEM vol-1 I found that to configure 19 sec as

> hello-interval Solution Guide presents the config as "isis hello-interval

> 58"

>

> In INE I am seeing that as just taken as seconds (vol2 - lab 4) . When

> question asks to configure 5 sec hello-interval, SG presents as "isis

> hello-interval 5".

>

>

> Command reference says its seconds:

> Setting the Advertised Hello Interval

>

> You can specify the length of time (in seconds) between hello packets that

> the Cisco IOS software sends on the interface.

>

> To specify the length of time between hello packets for the specified

> interface, use the following command in interface configuration mode:

>

> Command

> Purpose

>

> Router(config-if)# *isis hello-interval* {seconds | *minimal*}*

> *[*level-1*|

> * level-2*]

>

> Specifies the length of time (in seconds) between hello packets the Cisco

> IOS software sends on the specified interface.

>

>

>

>

http://www.cisco.com/en/US/docs/ios/12_2/ip/configuration/guide/1cfisis.html
#

wp1001038

>

>

> Which one is right?

> --

>

> *Regards,*

> *John*

>

>

> Blogs and organic groups at http://www.ccie.net

>

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Received on Sat Oct 09 2010 - 03:24:32 ART