Layer 2 switch

required a layer 2 switch with following requirement below
24 or 48 ports
ppoE supported
Redudant power supply
Stackable.
Please suggest a switch model with all the above features

However if you mean poe-
The 3750-X meets your requirements.
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/data_sheet_c78-584733.html

Similar Messages

Cisco Asa 5505 and Layer 3 Switch With Remote VPN Access

i got today a new CISCO LAYER 3 Switch .. so here is my scenrio
Cisco Asa 5505
I
Outside == 155.155.155.x
Inside = 192.168.7.1
VPN POOL Address = 10.10.10.1 - 10.10.10.20
Layer 3 Switch Config
Vlan 2
interface ip address = 192.168.1.1
Vlan 2
interface ip address = 192.168.2.1
Vlan 2
interface ip address = 192.168.3.1
Vlan 2
interface ip address = 192.168.4.1
Vlan 2
interface ip address = 192.168.5.1
ip Routing
So i want My Remote Access VPN clients to access all this Networks. So Please can you give me a helpfull trick or Link to configure the rest of my routing
Thank You all

When My Remote VPN is Connected , it reaches 192.168.7.2 of the Layer 3 VLan that's Connected to The ASA 5505 ,
But i can't reach the rest of the VLAN - example
192.168.1.1
192.168.1.2
192.168.1.3
192.168.1.4
192.168.1.5
But i can reach the Connected Interface Vlan to My ASA ..
So here i think iam miss configuration to my Route
Any Help Please this is urgent

Multi-layer/layer3 switch VS. Router

Multi-Layer Switch or Layer3 switch vs. router; How they are different?
1.7

In a router the route calculation and packet processing take place in the software on layer 3. This means that packets need to be moved from the layer 2 hardware interface to layer three and so it takes some time. In a layer 3 Switch Routing calculations takes place at layer 3 in hardware or software, while the actual packet processing takes place at layer 2. The speed gain is accomplished by reducing the amount of features supported and moving as much logic as possible into hardware.

How do you take information from one layer and switch it to another?

I am trying to figure out how to take pictures and text that I have already placed on one layer and switch it to another layer. I have like 50 pages worth of information and I am trying to look for the easiest way to do this. In illustrator and Photoshop, its pretty easy. Wanting to know if it is the same because I have been trying but it is not there. Just in case it matters, Im using CS5 on a pc. Help is greatly appreciated.

Hi Martin,
Please follow the below steps.
Step 1
Create the separate layer. Select the content you want to move.
Step 2
Go to check layer panel, near the pen symbol icon, the below box drag to move up to the image layer, see sample
Step 3
This option use spread wise content, it will complete the task with fast. If more faster, please raise as question to Scripting Forum, they can suggest the tool.

Dynamic VLAN assignment and Layer 3 switching on 300 series

I have a SG300-28P switch. I just read in the Administration Guide that, when in Layer 3 mode, the switch doesn't support MAC-based VLAN or Dynamic VLAN Assignment.
So, in order to assign a client to a VLAN based on their MAC or based on the response of a RADIUS server, we have to disable layer 3 features. Without layer 3 switching, the switch is unable to act as a default gateway and forward packets between VLANs. As a result, the VLANs can't communicate in any way, or access the internet, unless a separate router is connected to every VLAN. Right?
I'm new to VLAN configuration and layer 3 switching so I wanted to check my understanding. Doesn't this limitation significantly reduce the usefulness of the DVA feature?
I may well be confused and missing something regarding how this is typically used..

Hello Glenn,
Your concept about packet forwarding is correct. With a layer 2 switch, there must be something directing traffic with multiple subnets for intervlan communication or something that provides an IP route to give the request a path back for the request.
The usefulness for the DVA feature, is not particularly limited to the switch as the switch will correctly assign the VLAN for you, as VS the L3 switch mode, you're dealing with IP addresses. In any scenario, you're going to require a router to get to the internet since the switch does not support NAT.
Additionally, if you're router does not support VLAN, the L3 switch feature would still be the solution since you should be able to make a static route pointing back to the switch to allow any subnet to traverse the single media. It would still beg the question, how to assign VLAN dynamically.
The answer, although (in my opinion is terrible) would be GVRP. But, this application would require ALL of your network cards to be GVRP Enable / Capable which most likely is not the scenario for you (or most anyone else for that matter).

Multiple VLANs through to layer 2 switch

So long as each switch supports VLANing (which most manageable switches do), then yes. Some model numbers on the switches would help here though to be sure.
Also, keep in mind that assigning VLANs is a layer 2 function, not layer 3. So long as you tag the VLANs you need to pass between the switches on the feed ports between them, you should be able to have them running without issue.
Could you provide a little more detail as to what you're trying to accomplish so that we can better advise you how to proceed?

Hello,
Is it possible to send multiple vlans across a layer 3 dell powerconnect to a Meraki layer 2 switch and configure the ports to access the different vlans?
Is it also multiple vlans across a layer 3 dell powerconnect to a layer 2 dell powerconnect switch and configure the ports to access the different vlans?
I've been playing aound with this and I can't seem to get it done.
Thanks for any help in advance.
This topic first appeared in the Spiceworks Community

Broadcast storms applicable on layer 3 switches?

Dear all,
Me and my collegue were wondering about the following on a cisco 3750 x layer 3 switch.
Lets assume we configure the 3750 without vlans so we create several networks on the 3750. For example fa 0/1 has as network 10.10.10.0/24 with 10.10.10.1 as it being the default gateway. Fa 0/2 has as network 10.10.11.0/24 with 10.10.11.1 as it being the default gateway.
The question is if a broadcast storm rages on network 10.10.10.0/24, would 10.10.10.0/24 only be affected by the broadcast storm or will network 10.10.11.0/24 also be affected due the broadcast?
If we assume the same settings but we would utilize vlans then anetwork is definitely not being affected by a broadcast storm happening on an other network right?
Thanks in advance for your help.
kind regards

Hi,
When you configure an L3 port on your 3750
int f0/1
no switchport
ip add 10.10.10.1 255.255.255.0
no shut
int f0/2
no switchport
ip add 10.10.11.1 255.255.255.0
no shut
The key is NO SWITCHPORT
This takes the port out of L2 configuration therefore
it does not belong to any VLAN and does not operate like an L2 port
with regards to broadcast etc.
Have a look at this link from a 3750 config guide
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_55_se/configuration/guide/scg3750/swint.html#wpmkr2208885
Hope this helps
Regards
Alex

Layer 3 switches vpn

I have a question, it is possible to use a layer 3 switches to set up VPN tunnels?

Actually, it is only posible on Catalyst 6500 Switches with an special line card for VPN hardware-encryption.
DL.

Need ASA 9.x Etherchannel example w/ layer 2 switch config

Hello there:
Could anyone please point me to example configurations of Etherchannel on an ASA 9.x, connecting to a layer 2 switch? I need to see how the switch is configured as well.
Thank you.

Hi,
I have configured Port channel with Cisco 2960S switch. Here is the below configuration example. If the answer is correct please Comments.
fw-01# sho port-channel summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
U - in use N - not in use, no aggregation/nameif
M - not in use, no aggregation due to minimum links not met
w - waiting to be aggregated
Number of channel-groups in use: 1
Group Port-channel Protocol Span-cluster Ports
------+-------------+---------+------------+------------------------------------
11 Po11(U) LACP No Gi0/1(P) Gi0/0(P)
interface GigabitEthernet0/0
description *** Connected to CORE-SW-01 ***
channel-group 11 mode passive
no nameif
no security-level
no ip address
interface GigabitEthernet0/1
description *** Connected to CORE-SW-01 ***
channel-group 11 mode passive
no nameif
no security-level
no ip address
interface Port-channel11
description *** Connected to CORE-SW ***
nameif outside
security-level 100
ip address 10.98.8.90 255.255.255.248 standby 10.98.8.91
================Switch====================
interface Port-channel12
description *** Port-Channel Used for DC-INSIDE-FW-1-IPS***
switchport access vlan 912
interface GigabitEthernet1/0/21
description **** inside Firewall 01 ***
switchport access vlan 912
channel-protocol lacp
channel-group 12 mode active
Please let me know your topology.

HSRP with layer 2 switching

I configure HSRP on two layer 3 switches (Switch A-Switch B), Sw A is connected to Router A, Sw B is connected to Router B
But I want to use also the Layer two features of my switch
- is it possible to use these switches also for LAN ?
lets say there is a simple LAN with 1 VLAN and 10 PCs. PCs have two ethernet ports, they are directly connected to L3 switches redundantly.
thanks for helping

thanks Martin
I want all of my PCs (total ten) in the same subnet
so what should I do is:
1. configure 10 ports of the L3 switch as switchport under VLAN 1 (these ports will conect ten PCs on the same subnet)
One port of Switch A will be connected to router A (2610),
One port of Switch B will be connected to router B (2610). So;
2. Configure one port of the each L3 switches as 'no switch port' and assign IP addresses. Since they are not switchports, I shouldnt create VLAN for them.
3. Configure HSRP
4. Configure EIGRP or OSPF
AFTER ALL: there is one VLAN that connects all PCs,there is one Layer 3 port on each Switches. And systems work :-)
Could you please confirm If I properly understand your post?
thank you very much for helping

IPV6 with Cisco layer 2 switches.

I know IPV6 affects only layer 3 switches, but I heard that it also could affect layer 2 switches with VLANs. Is this true? I have Cisco 3500 / 2900 layer 2 switches. Please advise. Thanks

Thanks again but I have this layer 3 switch (4948) and it appears to have all the commands to configure ipv6 tunnel.
If it does not support tunnel, what does Cisco 4948 layer 3 switch provide under IPv6?
This is a link which shows tunneling under a 6500 switches with encapsulation/decapsulation. This is why I thought I could do the same with 4948 switch but apparently not...
http://www.cenic.org/events/archives/cenic2004/csmith.pdf
-Al-

Connect Nexus 5548UP-L3 to Catalyst 3750G-24T-E Layer 3 Switch

Please help!
Could anyone out there please assist me with basic configuration between Nexus Switch and Catalyst Switch, so that devices connected on the catalyst switch can talk to devices connected on nexus switch and vice-versa? In my current setup all servers on VLAN 40 are connected on the Catalyst Switch A as shown in the diagram below, and all desktops and all other peripherals are connected on the Catalyst Switch B. I am required to implement/add a new Nexus Switch 5548 that in the future will replace the Switch A. From now I just need to connect both switches together and start moving the server from Switch A to the Nexus Switch.
The current network setup is shown as per diagram below:
SWITCH A – this is a layer 3 switch. All servers are connected to this switch on the VLAN 40.
SWITCH B – all desktops, VoIP telephones, and printers are connected on tis switch. This switch is also a layer 3 switch.
I have connected together the Nexus 5548UP and SWITCH A (3750G) using the GLC-T= 1000BASE-T SFP transceiver module for Category 5 copper wire. The new network is shown as per diagram below:
Below is the configuration I have created in both Switches:
SWITCH A - 3750G
interface Vlan40
description ** Server VLAN **
ip address 10.144.40.2 255.255.255.128
ip helper-address 10.144.40.39
ip helper-address 10.144.40.40
interface Vlan122
description connection to N5K-C5548UP Switch mgmt0
ip address 172.16.0.1 255.255.255.128
no ip redirects
interface Port-channel1
description UpLink to N5K-C5548UP Switch e1/1-2
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30,40,100,101,122
switchport mode trunk
interface GigabitEthernet1/0/3
description **Connected to server A**
switchport access vlan 40
no mdix auto
spanning-tree portfast
interface GigabitEthernet1/0/20
description connection to N5K-C5548UP Switch mgmt0
switchport access vlan 122
switchport mode access
spanning-tree portfast
interface GigabitEthernet1/0/23
description UpLink to N5K-C5548UP Switch e1/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30,40,100,101,122
switchport mode trunk
channel-group 1 mode active
interface GigabitEthernet1/0/24
description UpLink to N5K-C5548UP Switch e1/2
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30,40,100,101,122
switchport mode trunk
channel-group 1 mode active
N5K-C5548UP Switch
feature interface-vlan
feature lacp
feature dhcp
feature lldp
vrf context management
ip route 0.0.0.0/0 172.16.0.1
vlan 1
vlan 100
service dhcp
ip dhcp relay
interface Vlan1
no shutdown
interface Vlan40
description ** Server VLAN **
no shutdown
ip address 10.144.40.3/25
ip dhcp relay address 10.144.40.39
ip dhcp relay address 10.144.40.40
interface port-channel1
description ** Trunk Link to Switch A g1/0/23-24 **
switchport mode trunk
switchport trunk allowed vlan 1,30,40,100-101,122
speed 1000
interface Ethernet1/1
description ** Trunk Link to Switch A g1/0/23**
switchport mode trunk
switchport trunk allowed vlan 1,30,40,100-101,12
speed 1000
channel-group 1 mode active
interface Ethernet1/2
description ** Trunk Link to Switch A g1/0/24**
switchport mode trunk
switchport trunk allowed vlan 1,30,40,100-101,122
speed 1000
channel-group 1 mode active
interface Ethernet1/3
description **Connected to server B**
switchport access vlan 40
speed 1000
interface mgmt0
description connection to Switch A g2/0/20
no ip redirects
ip address 172.16.0.2/25
I get a successful response from Server A when I ping the N5K-C5548UP Switch (VLAN 40 interface (10.144.40.3) .But if I try to ping from Server A to Server B or vice-versa the ping fails. From N5K-C5548UP I can ping successful either Server A or Server B. What am I doing wrong here? Is there any additional configuration that I need to add on the Nexus Switch? Please Help. Thank you.

no, no secret aukhadiev
I made a mistake without realising and the interface e1/3 was showing "Interface Ethernet1/3 is down (Inactive)". After spending sometime trying to figure out what was wrong with that interface or switch, it turned out to be that i forgot to add the vlan 40. Now the config looks like this:
N5K-C5548UP Switch
feature interface-vlan
feature lacp
feature dhcp
feature lldp
vrf context management
ip route 0.0.0.0/0 172.16.0.1
vlan 1
vlan 40
vlan 100
service dhcp
ip dhcp relay
interface Vlan1
no shutdown
interface Vlan40
description ** Server VLAN **
no shutdown
ip address 10.144.40.3/25
ip dhcp relay address 10.144.40.39
ip dhcp relay address 10.144.40.40
interface port-channel1
description ** Trunk Link to Switch A g1/0/23-24 **
switchport mode trunk
switchport trunk allowed vlan 1,30,40,100-101,122
speed 1000
interface Ethernet1/1
description ** Trunk Link to Switch A g1/0/23**
switchport mode trunk
switchport trunk allowed vlan 1,30,40,100-101,12
speed 1000
channel-group 1 mode active
interface Ethernet1/2
description ** Trunk Link to Switch A g1/0/24**
switchport mode trunk
switchport trunk allowed vlan 1,30,40,100-101,122
speed 1000
channel-group 1 mode active
interface Ethernet1/3
description **Connected to server B**
switchport access vlan 40
speed 1000
interface mgmt0
description connection to Switch A g2/0/20
no ip redirects
ip address 172.16.0.2/25
Thank you,
JN

Performance of layer 3 switches when they are acting like a router

Hi everybody
I want to know what are the performance differences of layer 3 switches when they are acting just like a router with lots of route entries in their routing table in compare to when they are acting in layer 2?
The layer 3 switch in our case is “WS-C3750X-24T-S”
I guess there is a difference between these two situations:
when the switch is acting in layer 3 and just routes packet between different VLAN (in routing table we just have entries for connected interfaces and nothing else)
when the switch is acting in layer 3 and also has to do routing based on static routes or routes learned via a routing table
I think in situation 1 the switch performance is just like when it is acting in layer 2 but I don’t know about situation 2. Does anyone know about this?
Thanks a lot

Hello.
Actually there is no difference unless you reach a capacity limit of routing table and other TCAM entries.
Also you need to note that some IOSs do not support full (but stub only) EIGRP functionality.
PS: see details regarding routing capacity.

Transparent Deployment Using Layer 4 Switch

Hi,
Just want to ask how to deploy WSA Ironport on transparent mode on layer 4 Switch.
I believe it is just deployed by choosing Layer 4 on Transparent Redirection on WSA Ironport.
But the question is, what will I need to configure to my Layer 4 switch for it to redirect traffic to WSA?
I'm trying to connect it to a hp procurve layer 4 switch to use transparent redirection.
Can someone clarify how to deploy it?
Thanks

Make sure your swtich can do it:
http://h30499.www3.hp.com/t5/Switches-Hubs-Modems-Legacy-ITRC/HP-Procurve-2626-Policy-based-routing/td-p/5421071
I did some digging and didn't find any decent docs on setting it up... but if you take your drawing from the L4TM question you posted, you want to set up a policy that for the "security vlan" so that all IP traffic on the web ports you want to monitor (80, 443, plus others you might want) gets sent to the IP of the WSAProxy
Here's a bit I lifted from a post on HP's site:
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c03015541/c03015541.pdf
You'll want to have a look through Chapter 8 for the configuration. You've got to basically configure a traffic class, configure policies for it, and then apply it (in this case) to each of the VLANs you want it for.
What kind of firewall are you using? If its a Cisco ASA, it would actually be simpler to do WCCP to the WSA...

Block external webaddress from layer 2 switch

Dear all,
I am trying to permit a website address 130.x.x.x from layer 2 switch, all other traffic should be denied.
I am trying this by:
access-list 15 permit host 130.x.x.x
access-list 15 deny any
and then applying it to interface fa0/5 in
this results in blocking all the traffic and don't permit the required address.
Layer 2 switch doesn't support ACL to be applied on OUT interface.
Please advise.

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
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Posting
Another way to accomplish this, is to place the necessary commands into a file placed on the device's local flash. Then you just copy the file from flash to the running config.
Like Peter's posting, I too would recommend a timed reload. (I also normally use a five minute time.)
This technique, or Peter's, can also be used to even change the attributes of the interface being used for remote connectivity.

Layer 2 switch

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