Hi Group (Brian, Tim Brad, et al.)
Thank you all for your help. I have one more question though :)
Can you configure one subinterface to communicate with 2 different routers?
Thanks in advance,
_
FAQ, list archives, and subscription info: http://www.groupstudy.c
Can someone point me to a reference on how to
configure sub interfaces?
Aaron Custer
Ladies and Gentlemen,
I have a intresting question, I have a 7204 VXR Router with 12.0(7)T
IOS. I am using sub-interfaces on the Hssi3/1 interface. When I am no
longer need a sub-interface I go into config t and type no int hssi3/1.154.
It deletes it, but if I type sho int hssi3/1.154
If it's anything like sub-interfaces on a serial interface - no, you have to
reboot the router to get rid of it completely. At least I haven't found any
other way of doing it - I'd like to know if you find one though.
JMcL
-- Forwarded by Jenny Mcleod/NS
On Sat, 28 Oct 2000, Austin wrote:
> Hi Group (Brian, Tim Brad, et al.)
>
> Thank you all for your help. I have one more question though :)
> Can you configure one subinterface to communicate with 2 different routers?
can you be more specific? I am going to make the assumption you are
talking
sure. You can do it for ethernet interface or serial interfaces. You can
configure the secondary ip address on that interface.
"Austin" <[EMAIL PROTECTED]> wrote in message
8tg5qi$a9m$[EMAIL PROTECTED]">news:8tg5qi$a9m$[EMAIL PROTECTED]...
> Hi Group (Brian, Tim Brad, et al.)
>
> Thank you all fo
you can define a subinterface to be "point-to-multipoint". then instead of
using "frame-relay interface-dlci x"
use multiple "frame-relay map" commands under that subinterface definition.
Mike Balistreri
"Austin" wrote in message <8tg5qi$a9m$[EMAIL PROTECTED]>...
>Hi Group (Brian, Tim Brad, et
Austin,
This response is in a bit more detail than the others but I think it's
worth it.
As another option you can also specify multiple dlci's and still use the
"frame-relay interface-dlci xxx" -- once for each dlci. This will allow
you to continue to use dynamic mapping vice static map stat
you can define a subinterface to be "multipoint" instead of "
point-to-point". then instead of
using "frame-relay interface-dlci x"
use multiple "frame-relay map" commands under that subinterface definition.
apply an IP address to the subinterface, and the IP addresses on the other
side of the PV
hi Brian.
I have a quick question from what you mentioned
regarding multipoint subinterface that I have always
been wondering about.
You mentioned, "Point to multipoint" and it can
communicate with many routers within that same
subnet."
Let's say there is a router in a headquarter, and 2
routers i
PROTECTED]
~
-Original Message-
From: admin RHS [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 09, 2000 12:12 PM
To: [EMAIL PROTECTED]
Subject: Sub interfaces
Can someone point me to a reference on how to configure sub interfaces?
Aaron Custer
Hi everyone,
What's the difference between secondary and sub interfaces and when and where
are they applied.
Dzilo
Get free email and a permanent address at http://www.netaddress.com
Sorry dude, I am pretty sure you need to down the router to clear the
deleted subinterface.
Casey
>From: Patrick Stiever <[EMAIL PROTECTED]>
>Reply-To: Patrick Stiever <[EMAIL PROTECTED]>
>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
>Subjec
uot;>news:[EMAIL PROTECTED]...
> Ladies and Gentlemen,
>
> I have a intresting question, I have a 7204 VXR Router with 12.0(7)T
> IOS. I am using sub-interfaces on the Hssi3/1 interface. When I am no
> longer need a sub-interface I go into config t and type no int
hssi3/1.154.
> I
You must reboot after deleting sub interface to completely clear it from
router.
- Original Message -
From: "Patrick Stiever" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, September 20, 2000 7:58 PM
Subject: Deleting Sub interfaces
> Ladies an
In a message dated 10/29/00 12:51:45 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
> On Sat, 28 Oct 2000, Austin wrote:
>
> > Hi Group (Brian, Tim Brad, et al.)
> >
> > Thank you all for your help. I have one more question though :)
> > Can you configure one subinterface to communicate
On Sun, 29 Oct 2000 [EMAIL PROTECTED] wrote:
>
> Point-to-multipoint. Lets say you have the head, and it's connected to 5
> remote ends. On the head you would use basically 5 subinterfaces. Each for a
> different remote end. This is easy to me and normal. His question makes me
> think though b
I am configuring 2 sub-interfaces on the router. One subinterface for the
connection to router1 and 1 subinterface for the connection to router2 and
router3. I will not be configuring subinterfaces on router1, router2 and
router3.
Hope this gives you some more information and it is a Frame Relay
On Sun, 29 Oct 2000, Austin wrote:
> I am configuring 2 sub-interfaces on the router. One subinterface for the
> connection to router1 and 1 subinterface for the connection to router2 and
> router3. I will not be configuring subinterfaces on router1, router2 and
> router3.
> Hope
nceive of the source of wealth or of the motivation of those who produce
it.
-- Ayn Rand
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Austin
Sent: Sunday, October 29, 2000 9:01 AM
To: [EMAIL PROTECTED]
Subject: Re: Sub Interfaces (hmmm?
2:13 PM
To: Louie Belt; [EMAIL PROTECTED]
Subject: RE: Sub Interfaces (hmmm?)
Hi Louie
I just want to clear one thing.
I thought that subinterface was created as a solution
for split horizon, so without subinterface configured,
split horizon should be on.
Could you verify what you said "if you
I think you may be referring to secondary networks for an Interface
and then Sub-interfaces.
Secondary refers to secondary network or IP for an interface. Say you
want to assign more than (1) IP or block of IP's to an interface what
already has an IP address/block assigned.. say.:
inte
Greetings all,
Which way do you guys recommend using in Ethernet environment if I have
multiple subnets? Are there any advantages/disadvantages for using one over
the other?.
Thanks,
Nabil
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/li
Fares
Sent: February 12, 2001 1:04 PM
To: [EMAIL PROTECTED]
Subject: Sub-interfaces and Secondary interfaces
Greetings all,
Which way do you guys recommend using in Ethernet environment if I have
multiple subnets? Are there any advantages/disadvantages for using one over
the other?.
Thanks,
Nabil
>Greetings all,
>
>Which way do you guys recommend using in Ethernet environment if I have
>multiple subnets? Are there any advantages/disadvantages for using one over
>the other?.
>
>Thanks,
>
>Nabil
They do different things. In large part, secondaries are a rather
ugly hack to deal with an a
I only use secondary interfaces as a means for migrating between IP
addressing schemes, but that's just me... They can come in handy when used
in multi-homed, non BGP environment...
I think sub-interfaces would make a really cool replacement...
Brant I. Stevens
Internetwork Solutions Eng
You really do not have a lot of choice in the matter. The subinterface
configuration can not be use unless you are running ISL encapsulation
(vlans) or a point-multipoint type network on the interface. If you try to
use the sub-interface setup without these the router will give you an error.
Ma
I have a tidbit to add.
Multicast is not supported on secondary networks. So you can't support
protocols that use multicast on the secondary network such as WCCP or H323.
Or at least you'll have to configure unicast connectivity for things like
OSPF or EIGRP.
Rodgers Moore
""Nabil Fares"" <[E
I'm looking at an design where there's a hub-spoke network
based on 802.1q. Specifically, there will be a number of routers
connect back via FE/GE into a central router through an 802.1q
trunked interface. Each remote router will run OSPF and thus
should form an OSPF adjancency with the central
Hi listers,
I want to do some form of queueing on sub-interfaces
on some of my routers. Each subif maps to a frame
dlci.
does any one know of a feature in IOS that can help?
most queueing mechanisms I've come across work only on
interfaces (not subifs.)
thx,
Hi,
This shouldn't be a problem. I've done it before. Just
make sure the native VLAN is the same on each 802.1q
connection (ie: switch port and router port connecting
to each other are in same native VLAN). If you have a
newer router IOS you can do a 'encaps dot1q # native'
command. Older IOS's d
Hi
I was studying the InterVlan routing documents and I got to some questions.
In a scenario like the attached file:
1. How does the external Router decide how to route the packets between the
VLANs, is the INTERVLAN routing based on the IP address assigned to
sub-inteface?
2. In these scenario
Is there a max number of subinterfaces a router can handle before it slows
down? Is this number constrained by memory on a router? But from a general
design perspecitive, is there a limit to the number? Could I do 1000
subinterfaces on a router with no performance degredation?
--
RFC 1149 Comp
you can do priority dlci's and you can apply class maps to map classes I
think.
""dayo olabisi"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi listers,
>
> I want to do some form of queueing on sub-interfaces
> on some of
You could configure custom-queue or priority queue using map-class
frame-relay.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/wan_c/wcdfrely.htm
Regards,
Alaerte
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=53719&t=53706
Answer Inline
> Hi
>
> I was studying the InterVlan routing documents and I got to some
questions.
> In a scenario like the attached file:
>
> 1. How does the external Router decide how to route the packets between
the
> VLANs, is the INTERVLAN routing based on the IP address assigned to
> sub-i
Keep in mind that one routes between IP subnets, not VLANs. VLANs are a
layer two concept. From there you should be able to answer you own first
question. In the second case, given IP subnets have unique ranges, only on
PC will be on the valid subnet and hence be able to communicate to the rest
At 03:55 AM 8/18/01, Hamid wrote:
>Hi
>
>I was studying the InterVlan routing documents and I got to some questions.
>In a scenario like the attached file:
>
>1. How does the external Router decide how to route the packets between the
>VLANs, is the INTERVLAN routing based on the IP address assign
-
From: Steven A. Ridder [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 28, 2002 3:43 PM
To: [EMAIL PROTECTED]
Subject: max number of Sub interfaces [7:45288]
Is there a max number of subinterfaces a router can handle before it slows
down? Is this number constrained by memory on a router? But
Sub interfaces [7:45288]
Is there a max number of subinterfaces a router can handle before it slows
down? Is this number constrained by memory on a router? But from a general
design perspecitive, is there a limit to the number? Could I do 1000
subinterfaces on a router with no performance
IDB is the magic Word: Interface Descriptor Block
http://www.cisco.com/warp/public/63/idb_limit.html
Cheers
Tom
""Steven A. Ridder"" schrieb im Newsbeitrag
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Is there a max number of subinterfaces a router can handle before it slows
> down? Is this
Steven,
Every interfaces includes subinterface(sw), physical interface(hw),
virtual/logical interface(sw) is divided into s/w & h/w category. Each
Software IDBs takes ~2600bytes v/s Hardware IDBs takes ~4700bytes. No.of
IDBs you want to use it depends upon your system resources have it
curren
Steven,
I supposed it would really depend what else you're doing on the device.
I've worked with a pair of 3640s that each had 300 or so sub-interfaces on
them, running just EIGRP on the routers and they didn't miss a beat. If
each of those sub-interfaces also had crypto runni
Ok Agreed.
But what if the routers finds 2 matchings for one IP address while
performing an ARP broadcast?
Hamid
*
""Peter Van Oene"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Keep in mind that one routes between IP subnets, not VL
Hi all,
I can use SNMP to get the network utilization of a
interface. However, can I use SNMP to get the network
utilization of the frame relay port and ATM port where
they are in sub-interfaces. Is there any MIB ID can
allow me to do so?
Regards.
Dovelet
bit confused after reading the Ciscopress CCNP Support book and
> Caslow's ccie book. Can frame-relay multipoint sub-interfaces support
> inverse arp DLCI mappings?? Ciscopress Support book seem to say no (not
> directly though) but Caslow's book says yes. Thanks in adv
> I was a bit confused after reading the Ciscopress CCNP Support book and
> Caslow's ccie book. Can frame-relay multipoint sub-interfaces support
> inverse arp DLCI mappings?? Ciscopress Support book seem to say no (not
> directly though) but Caslow's book says yes. Tha
Subject: Re: Can frame-relay multipoint sub-interfaces support inverse
[7:28367]
> I was a bit confused after reading the Ciscopress CCNP Support book and
> Caslow's ccie book. Can frame-relay multipoint sub-interfaces support
> inverse arp DLCI mappings?? Ciscopress Support bo
Hi,
I was a bit confused after reading the Ciscopress CCNP Support book and
Caslow's ccie book. Can frame-relay multipoint sub-interfaces support
inverse arp DLCI mappings?? Ciscopress Support book seem to say no (not
directly though) but Caslow's book says yes. Thanks in advance
Fred
"Ng, Kim Seng David (David)" wrote:
>
> Hi,
>
> I was a bit confused after reading the Ciscopress CCNP Support book and
> Caslow's ccie book. Can frame-relay multipoint sub-interfaces support
> inverse arp DLCI mappings?? Ciscopress Support book seem to s
I am having a problem when attempting to configure sub-interfaces for a
Frame Relay connection and was wondering if anyone has ever seen this
problem before. I configured two routers for a point-to-point Frame Relay
circuit with sub-interfaces and performed a test and turn-up with AT&T w
also check that "ip subnet-zero" is turned on. If not, you will
get that very message if you try to use the zero subnet.
Rik
-Original Message-
From: tazman [mailto:[EMAIL PROTECTED]]
Sent: Sunday, June 24, 2001 5:10 PM
To: [EMAIL PROTECTED]
Subject: Setting up Sub-interfaces
turned on. If not, you will
> get that very message if you try to use the zero subnet.
>
> Rik
>
> -Original Message-
> From: tazman [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, June 24, 2001 5:10 PM
> To: [EMAIL PROTECTED]
> Subject: Setting up Sub-interfa
we dealing with ???
I think mine were all 11.2 something...
Phil
- Original Message -
From: "Rik Guyler"
To:
Sent: Sunday, June 24, 2001 10:26 PM
Subject: RE: Setting up Sub-interfaces on serial interface for Frame
[7:9704]
> Well, since you say you have everything else
t.
>
> Rik
>
> -Original Message-
> From: tazman [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, June 24, 2001 5:10 PM
> To: [EMAIL PROTECTED]
> Subject: Setting up Sub-interfaces on serial interface for Frame Relay
> [7:9697]
>
>
> I am having a problem when a
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