comments in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kelly Cobean
Sent: Tuesday, February 18, 2003 7:54 PM
To: [EMAIL PROTECTED]
Subject: RE: Does MLS (Layer 3 switching) require VLANs? [7:63147]
Priscilla,
Ok, you caught me
comments in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Howard C. Berkowitz
Sent: Tuesday, February 18, 2003 6:42 AM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7:63147]
At 5:30 AM + 2/18/03, Ken
At 6:19 PM + 2/19/03, Vicky Rode wrote:
comments in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kelly Cobean
Sent: Tuesday, February 18, 2003 7:54 PM
To: [EMAIL PROTECTED]
Subject: RE: Does MLS (Layer 3 switching) require VLANs? [7:63147
At 6:51 PM + 2/19/03, Vicky Rode wrote:
comments in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Howard C. Berkowitz
Sent: Tuesday, February 18, 2003 6:42 AM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7
hi,
comments in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Howard C. Berkowitz
Sent: Wednesday, February 19, 2003 2:17 PM
To: [EMAIL PROTECTED]
Subject: RE: Does MLS (Layer 3 switching) require VLANs? [7:63147]
At 6:51 PM + 2/19/03
Ok, its 1:29AM CST - and I am setting here chewing on this switching study
guide information about VLANs. I think I see where my confusion has come
from and what the answer is now.
Layer 3 switching does not require VLANs, but what is DOES require is a
physical port connection on the common L3
: RE: Does MLS (Layer 3 switching) require VLANs?
[7:63147]
I'm loath to continue this discussion, but I do have a
question for Kelly.
Why do you have a VLAN at all in your example?? Isn't a
single VLAN sort of
like one hand clapping? Seriously, what role is it playing
in your network
an ip address and routing
support to make them function
Larry Letterman
Network Engineer
Cisco Systems
- Original Message -
From: Stephen Hoover
To:
Layer 3 switching does not require VLANs, but what is DOES
require is a
physical port connection on the common L3 switch for every
IP
Vicky Rode shaped photons and electrons to say:
see comments in-line:
-Original Message-
From: Stephen Hoover [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 17, 2003 11:20 AM
To: Vicky Rode
Cc: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7:63147
At 5:30 AM + 2/18/03, Ken Diliberto wrote:
The nit I'm picking is inline... (I'm feeling like chipping in tonight)
The Long and Winding Road
02/17/03 06:13PM
[snip]
if I have a 75xx router with 300 ethernet ports, and I bridge all
those
ports, do I have an L3 switch, or a router?
[KD]
.
Thanks!!
Stephen
- Original Message -
From: Ken Diliberto
To:
Sent: Tuesday, February 18, 2003 12:24 AM
Subject: Re: Does MLS (Layer 3 switching) require VLANs?
[7:63147]
Stephen,
You're getting there. Let me give an example of how VLANs
are used
(I'd draw
.
Thanks!!
Stephen
- Original Message -
From: Ken Diliberto
To:
Sent: Tuesday, February 18, 2003 12:24 AM
Subject: Re: Does MLS (Layer 3 switching) require VLANs?
[7:63147]
Stephen,
You're getting there. Let me give an example of how VLANs
are used
(I'd draw
Priscilla,
All I want is credit. :-)
Some guy on one of the many mailling lists I frequent put it this
way: (maybe not)
Ken
Priscilla Oppenheimer 02/18/03 12:06PM
[snip]
I think Ken's example is one of the cleanest I've seen. I may have to
borrow it for my classes.
[snip]
Message
hi, I am trying to have a clearer picture of the layer 3 switching
concept.
Assuming that I have a Core Catalyst 6 series switch with layer 3
switching capabilities, I have a Access layer switch connected to the
core with two port label Vlan 1 subnet 1 and Vlan 2 subnet 2,
when frames
Ken Diliberto wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Priscilla,
All I want is credit. :-)
if it makes you feel better, Ken, I always credit you with at least two
cents worth
I'm going to be visiting some of your compadres int the next couple of
weeks. Dare I drop
and Technologies for more information.
Han Chuan Alex Ang wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
hi, I am trying to have a clearer picture of the layer 3 switching
concept.
Assuming that I have a Core Catalyst 6 series switch with layer 3
switching capabilities
of the fact that the MSFC
only has a
single VLAN.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of
Stephen Hoover
Sent: Monday, February 17, 2003 8:33 PM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs?
[7:63147
At 1:57 AM + 2/19/03, Han Chuan Alex Ang wrote:
hi, I am trying to have a clearer picture of the layer 3 switching
concept.
Assuming that I have a Core Catalyst 6 series switch with layer 3
switching capabilities, I have a Access layer switch connected to the
core with two port label Vlan
Han Chuan Alex Ang wrote:
hi, I am trying to have a clearer picture of the layer 3
switching
concept.
Assuming that I have a Core Catalyst 6 series switch with layer
3
switching capabilities, I have a Access layer switch connected
to the
core with two port label Vlan 1 subnet 1
Howard,
It would be so much fun to not understand some of this up close. :-)
Howard C. Berkowitz 02/18/03 06:42AM
[snip]
Does that make a 7500 with VIPs a L3 switch? A 12000 with
distributed forwarding processors?
Substituting router for L3 switch is a good idea, but go farther than
DEar Stefen,
you are doing a bit of confusion:
so does layer 3 switching require the use of VLANs to actually do
the switching?
It's true the contrary case: the Vlans requires L3 to be routed, or, in
other terms, to comunicate each others. The L3 switching has no sens without
VLAN
Say
comment in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 17, 2003 2:10 AM
To: [EMAIL PROTECTED]
Subject: RE: Does MLS (Layer 3 switching) require VLANs? [7:63147]
DEar Stefen,
you are doing a bit of confusion:
so does layer 3
so does layer 3 switching require the use of VLANs to actually do
the switching?
It's true the contrary case: the Vlans requires L3 to be routed, or, in
other terms, to comunicate each others. The L3 switching has no sens
without
VLAN
Right, I understand that inter-VLAN routing requires
Say for instance I have 2 hosts on the same layer 3 switch, but the
two
hosts are on 2 different IP subnets (No VLANs are defined).
That's not possible! if you are talking about 2 IP subnet, than:
-
actually it is by doing secondaries, but i would highly recommend
Hi,
a layer3 switch (e.g.3550-EMI) does not have layer3 interfaces.
All interfaces (Fastethernet and GigabitEthernet) are layer2
interfaces. They can not have IP addresses.
The VLANs are the (virtual) interfaces to the routing engine
(=layer3 switch).
Layer2 interfaces are grouped into
Jens Neelsen wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Hi,
a layer3 switch (e.g.3550-EMI) does not have layer3 interfaces.
All interfaces (Fastethernet and GigabitEthernet) are layer2
interfaces. They can not have IP addresses.
gentle correction. by entering the no
Vicky Rode wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
comment in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 17, 2003 2:10 AM
To: [EMAIL PROTECTED]
Subject: RE: Does MLS (Layer 3 switching) require V
To:
Sent: Monday, February 17, 2003 3:28 PM
Subject: Re: Does MLS (Layer 3 switching) require VLANs? YES [7:63147]
Hi,
a layer3 switch (e.g.3550-EMI) does not have layer3 interfaces.
All interfaces (Fastethernet and GigabitEthernet) are layer2
interfaces. They can not have IP addresses
because it says so in the study materials doesn't mean that's the
way it is.
comments below
Stephen Hoover wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
I am studying for the CCNP Switching exam and it covers VLANs and layer 3
switching moderately. It states th
studying for the CCNP Switching exam and it covers VLANs
and layer 3
switching moderately. It states that Cisco recommends a 1 to
1 mapping of
VLANs to subnets. It also states that VLANs can be used to
break up
broadcast domains.
this is a reasonable, simple approach, and thus one that
appea
comments inline.
--- Jens Neelsen wrote:
Hi,
a layer3 switch (e.g.3550-EMI) does not have layer3
interfaces.
All interfaces (Fastethernet and GigabitEthernet)
are layer2
interfaces. They can not have IP addresses.
On the 3550, you can have IP addresses on the actual
interface if you do
hat just because it says so in the study materials doesn't
mean that's the
way it is.
comments below
Stephen Hoover wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
I am studying for the CCNP Switching exam and it covers VLANs
and layer 3
swit
-
actually it is by doing secondaries, but i would highly recommend doing
vlans if possible. keep it clean and simple.
one may also configure the physical interfaces as L3 interfaces - just as
one might do on a router with several ethernet ports.
Oo ok, now
hi,
comments in-line:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
The Long and Winding Road
Sent: Monday, February 17, 2003 3:41 PM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7:63147]
Vicky Rode wrote
Stephen Hoover wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
-
actually it is by doing secondaries, but i would highly recommend
doing
vlans if possible. keep it clean and simple.
one may also configure the physical interfaces as L3
HTH,
Thank you for these comments - this clears up a lot of confusion for me.
To sum, just to make sure I really have this:
Layer 3 switching is possible without VLANs (however the opposite is not
true. Well at least not without some form of Layer 3 intervention.)
VLANs simply
support.
When I first heard the term Layer 3 switching (some 4 years ago now) the
first thing that popped into my mind was a switch that can route. I never
even heard of a VLAN until a couple of years ago.
The Cisco Study guide starts off talking about VLANs, and moves right into
Inter-VLAN routing
(Layer 3 switching) require VLANs?
[7:63147]
-
actually it is by doing secondaries, but i would
highly recommend doing
vlans if possible. keep it clean and simple.
one may also configure the physical interfaces as L3
interfaces - just as
one might do on a router
a
single VLAN.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Stephen Hoover
Sent: Monday, February 17, 2003 8:33 PM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7:63147]
-
actually
For some reason my responses are taking a REALLY long time to get to the
list in relation to other people's responses, so the conversation is losing
continuity.
I sent an email at 8:55PM CST and I am writing this at 10:19PM CST and my
8:55 post still has not made it to the list.
This is adding
hi stephen,
see comments in-line:
-Original Message-
From: Stephen Hoover [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 17, 2003 11:20 AM
To: Vicky Rode
Cc: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7:63147]
Say for instance I have 2 hosts
-
actually it is by doing secondaries, but i would highly recommend doing
vlans if possible. keep it clean and simple.
one may also configure the physical interfaces as L3 interfaces - just as
one might do on a router with several ethernet ports.
Oo
The nit I'm picking is inline... (I'm feeling like chipping in tonight)
The Long and Winding Road
02/17/03 06:13PM
[snip]
if I have a 75xx router with 300 ethernet ports, and I bridge all
those
ports, do I have an L3 switch, or a router?
[KD]
You have a router performing L2 operations
a
single VLAN.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of
Stephen Hoover
Sent: Monday, February 17, 2003 8:33 PM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs?
[7:63147
[mailto:[EMAIL PROTECTED]]On
Behalf Of
Stephen Hoover
Sent: Monday, February 17, 2003 8:33 PM
To: [EMAIL PROTECTED]
Subject: Re: Does MLS (Layer 3 switching) require VLANs?
[7:63147]
-
actually it is by doing secondaries, but i would highly
recomme
, February 18, 2003 12:24 AM
Subject: Re: Does MLS (Layer 3 switching) require VLANs? [7:63147]
Stephen,
You're getting there. Let me give an example of how VLANs are used
(I'd draw a picture, but it probably wouldn't look good).
For this example, let's use two of the colleges on my university
I am studying for the CCNP Switching exam and it covers VLANs and layer 3
switching moderately. It states that Cisco recommends a 1 to 1 mapping of
VLANs to subnets. It also states that VLANs can be used to break up
broadcast domains.
When you create different subnets, you are already breaking up
Hi, Dovelet
Fast switching is implemented in software(IOS). It is a in-memory cache.
Layer-3 switching normally is implemented in hardware, such as hardware
cache or
ASIC chip.
Michael
dovelet wrote in message ...
Hi all,
I have a question and I hope someone can help me. As I know, Cisco
, the other
packets with the same source and destination address will go through the
switching process. As I know, the layer 3 switching router is doing the same
job. Then, what is the different between a layer3 switching router and a
router in fast switching?
Regards,
dovelet
Message Posted at:
http
Destination addresses are stored in the high-speed (switching)cache to
expedite forwarding. Routers offer better packet-transfer performance when
fast switching is enabled. Fast switching is enabled by default on all
interfaces that support fast switching.
layer 3 switching differs from
the following packet match the same rule will be directly switched by the
L3-Swtich or MLS-enabled Switch.
Inter-Vlan Routing: This is kind of routing. This first packet and the
following packet will be routed by the router, not switch. So you will find
the Inter-Vlan routing can not provide
the following packet match the same rule will be directly switched by the
L3-Swtich or MLS-enabled Switch.
Inter-Vlan Routing: This is kind of routing. This first packet and the
following packet will be routed by the router, not switch. So you will find
the Inter-Vlan routing can not provide
Hi Frank,
I think the best description for Layer 3 Switching is Route once - Switch
many.
The first time a packet in a particular flow passes through, a routing
function will be used (on a different card, or even in a different device).
But to speed up the processing of any further packets
I think that what you have described is multi-layer switching.
As Howard has mentioned in past posts, L3S is simply a marketing term as is
wire-speed switching. Layer 3 Switching is simply a line card, typically in
a chassis-based system, that can make routing decisions (layer 3) using
Hi
OK I'll bite...
Yes there is a difference. It gets a little convoluted, but there is a
difference.
L3 switching: Think of a L3 switch as a multi port router that operates at
wire speed. The 2948G-L3 is an example. It is just a 50 port Ethernet
router. So L3 switching is routing traffic at
cription of WS-X4232-L3
on
cisco website.
The Catalyst 4003 and 4006 Layer 3 Services module provides interVLAN
routing for the Catalyst 4000 family switch and provides Layer 3 switching
between the Gigabit Ethernet interfaces.
John Hardman wrote in message
[EMAIL PROTECTED]">news:
website.
The Catalyst 4003 and 4006 Layer 3 Services module provides interVLAN
routing for the Catalyst 4000 family switch and provides Layer 3
switching
between the Gigabit Ethernet interfaces.
John Hardman wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Hi
OK I'll
, to compensate for senility.
Cheers,
Gaz
Rik Guyler wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
I think that what you have described is multi-layer switching.
As Howard has mentioned in past posts, L3S is simply a marketing term as
is
wire-speed switching. Layer 3 S
Any difference?
frank wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Thanks,
Frank
FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
Thanks,
Frank
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=6080t=6080
--
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL
Hi
OK I'll bite...
Yes there is a difference. It gets a little convoluted, but there is a
difference.
L3 switching: Think of a L3 switch as a multi port router that operates at
wire speed. The 2948G-L3 is an example. It is just a 50 port Ethernet
router. So L3 switching is routing traffic at
What does the following mean ?it's cut from a description of WS-X4232-L3 on
cisco website.
The Catalyst 4003 and 4006 Layer 3 Services module provides interVLAN
routing for the Catalyst 4000 family switch and provides Layer 3 switching
between the Gigabit Ethernet interfaces.
John Hardman
- Original Message -
From: Mr. Oletu Hosea Godswill, CCNA
To: Ronny Jonathan
Sent: Monday, May 07, 2001 6:18 PM
Subject: Re: Layer 3 Switching Flow Mask [7:3360]
Me think since MLS has to do with layer 2 up to layer 4. We know that
layer
4 has ports numbers and all that. Ordinary
Hi All,
In BCMSN course book (Cisco Press) p233, it is stated that:
Most Cisco documentation explains flow masks as a way to determine how
packets are compared to entries in the MLS cache. This is inaccurate. Flow
masks are actually used to determine how much information about the packet is
First, thanks for your answer Drew ... but I'm still
confused ...
It determines what information
is stored in the mls entry and enforces all packets
coming through the mls
switch to be compared with the entry according to
the flow mask specified
with set mls flow.
How about the note in the
I am trying to find out about switching on the CCIE lab exam, is there a
particular focus on layer 2 using the set commands, or is it a mix of both?
I am just trying to get an overview of what I need to pass the test, should
I buy the RSM for the Catalyst 500, or should I save my money. Any help
ation"
-
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Dove
Sent: Wednesday, March 07, 2001 7:02 AM
To: [EMAIL PROTECTED]
Subject: Confuse about Fast Switching and Layer 3 switching
Hi,
I
mpowering the Internet Generation"
-
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Dove
Sent: Wednesday, March 07, 2001 7:02 AM
To: [EMAIL PROTECTED]
Subject: Confuse about Fast Switching and Layer 3 switching
Hi,
I have
Stuart,
I do not think any packets could be switched without CPU. Fast switching
needs CPU, it just does not need the CPU to call the ip input process. If
the router needs to search the routing table, it will need ip input process,
other than that, the CPU can use cache during one interrupt. As
Hi,
I have some confuse about the "Fast Switching" and "Layer 3 switching". Both
of them are mentioned that route first packet and switch others. Could
anyone please help me?
Regards.
dovelet
_
FAQ, list archives, and sub
Any 6500 series switch can be a layer 3 switch as well as the 3500
series and 2900 series, I believe.
Thanks,
--
**
Q. Wade Billings
Product Operations Manager
Excite@Home - The Leader in Broadband
_
FAQ,
Muhammad Asif Rashid wrote:
Any 6500 series switch can be a layer 3 switch as well as the 3500
series and 2900 series, I believe.
With many limitations. Check the documentation. It depends on the
environment you want to put the switch into. Same for 2948G-L3 and
other "layer 3" devices
FRS,
Layer 3 Switching, is not a situation when the CPU isn't involvedThat is
Fast Switching, This is actually when routing information is stored in CACHE
memory and it is processed without running as many interrupts to the
CPU.
And YES L3 switching does have everything to do with L2
Found this interesting link. It wanders a little from the "Layer-3
Switching" subject, but as newbie I found it interesting.
http://www.cisco.com/warp/public/cc/so/neso/lnso/cpso/l3c85_wp.htm
Dave
**NOTE: New CCNA/CCDA List has been formed. For more information
Cisco's "layer 3 switching", simply put, refers to all routing processes
except process switching (conventional routing with CPU). Namely, any
routing process without CPU's intervention is considered "layer 3
switching". This has nothing to do with frames (layer 2) o
1. What does the process Layer 3 switching refer to?
"switching" has become a convuluted term.
"switching", in marketing-speak, means "fast" for all
intents and purposes.
Thus, "L3 switching" is "fast routing".
Have fun.
**NOTE: New CCNA/
Title: Layer 3 switching
I know there has been much discussion on this in the past, but I want to make sure that I understand it. Layer 3 switching is the equivalent of routing, but is usually referred to as Layer 3 switching because it's designed for high speed LAN traffic.
Assuming
Title: Layer 3 switching
2948G-L3 -- Basically a 48-port
router!
-Original Message-From: Fowler, Joey
[mailto:[EMAIL PROTECTED]]Sent: Wednesday, September 27, 2000
11:19 AMTo: [EMAIL PROTECTED]Subject: Layer 3
switching
I know there has been much discussion
Title: Layer 3 switching
I
believe the 6000 series can be outfitted with a module to make it a layer-3
switch...
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Fowler, JoeySent:
Wednesday, September 27, 2000 11:19 AMTo:
[EMAIL PROTECTED
Any 6500 series switch can be a layer 3 switch as well as the 3500
series and 2900 series, I believe.
Thanks,
--
**
Q. Wade Billings
Product Operations Manager
Excite@Home - The Leader in Broadband
begin:vcard
n:Billings;Q. Wade
Title: Layer 3 switching
6000
series switch, 5500, 4006 have a router module to put in it.
-Original Message-From: Iohan Reyes
[mailto:[EMAIL PROTECTED]]Sent: Wednesday, September 27, 2000 12:45
PMTo: Fowler, Joey; [EMAIL PROTECTED]Subject: RE:
Layer 3 switching
I
Please correct me if I am wrong, but aren't the 2900 and 3500 layer 2 only?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Q
Wade Billings
Sent: Wednesday, September 27, 2000 1:40 PM
To: [EMAIL PROTECTED]
Subject: RE: Layer 3 switching
Any 6500
Title: Layer 3 switching
OK,
maybe this is a question of semantics, maybe I'll get flamed, but here goes
anyway. The 6000 series does Multilayer switching, which is quite
different in its functionality than layer 3 switching. Multilayer
switching must still have a layer 3 router available
Title: Layer 3 switching
In the
6000 family the MSFC acts as the MLS-RP, the equivalent of an RSM or Layer 3
router, and the Policy Feature Card(PFC) acts as the MLS-SE, which basically is
the equivalent of the Net Flow Feature Card(NFFC) in the Cat 5000
family.
-Original Message
Title: Layer 3 switching
OK, no
argument from me. It's still Multi-layer switching, not layer 3
switching.
Steve
-Original Message-From: Abruzzese, John
[mailto:[EMAIL PROTECTED]]Sent: Wednesday, September 27,
2000 1:56 PMTo: Steve and Monica BrokawCc: Cisco Group
Study
Message-
From: Guyler, Rik [EESUS] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 27, 2000 9:00 AM
To: Cisco Groupstudy (E-mail)
Subject: RE: Layer 3 switching
2948G-L3 -- Basically a 48-port router!
-Original Message-
From: Fowler, Joey [mailto:[EMAIL PROTECTED]]
Sent: Wednesd
I need some help in understanding Layer 3 Switching.
1. What does the process Layer 3 switching refer to?
2. Is it packets or frames being switched out of interfaces or ports?
3. Using the 2948G-L3 as an example, how is the switching determined - by
Routing table or CAM table?
All help
Sent: Wednesday, September 27, 2000 6:55 PM
To: [EMAIL PROTECTED]
Subject: LAYER 3 SWITCHING
I need some help in understanding Layer 3 Switching.
1. What does the process Layer 3 switching refer to?
2. Is it packets or frames being switched out of interfaces or ports?
3. Using the 2948G-L3
s anyone else have any
experience
with it?
Hope that helps with the concept,
Francis Arigo, MCSE, CCNA
System Administrator
Classroom Connect
-Original Message-
From: Ms. Maria [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 14, 2000 7:58 PM
To: [EMAIL PROTECTED]
Subject: L
7:58 PM
To: [EMAIL PROTECTED]
Subject: Layer 3 switching vs. Layer 4 switching?
Hi,
I was reading Karen Webb book on Building Cisco Multilayer Switched
Networks
(BCMSN). I came across some information on Layer 4 switching that somehow
I
didn't understand. It says that "Layer 4 swit
I'm wondering if anybody can point me to some good books on layer 3
switching that gets into technical details on QoS, design, that type of
stuff. We are looking at replacing some of our shared 10 Meg equipment
with 10/100 switches and we are looking at some layer 3 equipment. I am
familiar
released the 2948G-L3 but I still wouldn't put layer 3 in a
closet unless there was a real need for it.
http://www.cisco.com/univercd/cc/td/doc/product/l3sw/2948g-l3/index.htm
http://www.cisco.com/univercd/cc/td/doc/pcat/ca2948g.htm
For a good reference on Layer 3 switching, check out this link
hardware
based routing that consider the applications. "
I understand the Layer 3 switching that is not logical and etc. But what
about Layer 4 switching??? What new Switches and Routers are supporting
Layer 4 (Transport Layer) switching?
If Layer 3 and Layer 4 switching is same than is there
understand the Layer 3 switching that is not logical and etc. But what
about Layer 4 switching??? What new Switches and Routers are supporting
Layer 4 (Transport Layer) switching?
If Layer 3 and Layer 4 switching is same than is there any difference?
Any responses are welcome on this topi
I just set this up on a 6506 with two MSFCs running HSRP.
MLS is on by default at the switch layer but you still need to define it for
each router interface.
See the Cisco documentation for this at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_5_4/msfc/mls.
PROTECTED];
[EMAIL PROTECTED]
Sent: Tuesday, June 06, 2000 3:28 PM
Subject: Re: 6506 Vlan and layer 3 switching
question
I understood, you have to configure mls rp for the
mulitlayer swithing to work, right? why you do not
need mls rp when using MSFC? Is that because the
RSM
is on board, i
/univercd/cc/td/doc/product/lan/cat6000/sw_5_3/msfc/mls.
htm
- Original Message -
From: "Kent" [EMAIL PROTECTED]
To: "Michael Rasmussen" [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Tuesday, June 06, 2000 3:28 PM
Subject: Re: 6506 Vlan and layer 3 switching question
I
You shouldn't have to do anything else to route
between just those two VLANs. Also just a side note. The mls rp ip
command is not necessary since you are using the MSFC.
""Josh Youngman"" [EMAIL PROTECTED]
wrote in message 002801bfcf35$c2e0$[EMAIL
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