Vs SF300-24 L2 L3 Modes

24 / SF300, what is the major difference between L2 and L3 Modes.

The switch, to which you refer is both layer 2 and layer 3 active. If it is enabled, this means that the switch can perform

functions at the level of the selected layer. An active layer 3 switch essentially acts as a router, while the

an active layer 2 switch does not work. Layer 2 switches receive packets and transfer them to the correct in location

a network. Layer 3 switches and routers both do the same thing, but use IP addresses in the packets forwards, between or within networks.

See the next page for more information on the subject:

http://www.Cisco.com/Web/about/ac123/ac147/archived_issues/ipj_1-2/switch_evolution.html

If you have any other questions, I'll be happy to help you.

Thank you

Rocket

Tags: Cisco Support

Similar Questions

  • Routing problem mode SF300 - 24 Layer 3

    Hi all, as a topic, I have a problem with my itinerary SF300-24. This is my network configuration:

    Port 1 to 12 assigned to VLAN 10

    Port 13-23 assigned to VLAN 20

    24 port has an IP 10.17.7.254 to connect with my itinerary deafult, because I also have a Linksys RV042 router, connected in turn with my ISP router, having a 10.17.7.1 ip address.

    VLAN 10 has 10.17.10.1

    VLAN 20 was 10.17.20.1

    So I add a default route on my SF300-24 to 10.17.7.1 to get an Internet connection.

    Here's the problem:

    Computer A is connected to VLAN 10 on port 1

    Compuer B is connected to the VLAN 20 13 IDE oucederomsurlesecondport

    An e B can talk perfectly each other and also to port 24 (10.17.7.254), but when I try to ping my Linksys RV042 (10.17.7.1) or reach Internet all fail.

    Instead when I logged in SF300-24 and try to ping Linksys RV042 (10.17.7.1) or Internet access, everything works great!

    What could be the problem?

    Thank you

    Joshua

    Yes, need to set up static routes on router.

    -Tom
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  • There is no command 'Switchport Voice Vlan"on SF300 - 24 p!

    Hello everyone

    I am in an urgent problem: S

    I have a small business SF300 - 24 p

    I created two vlans one data and one voice

    but I have not assigned to ports and I do not know how, because there is no command ' switchport voice vlan "under the interface!

    Here are the configurations

    BTW the switchport mode is always trunk as it is by default

    Thanks in advance

    switch0a1172 #.

    switch0a1172 #.

    switch0a1172 #sho run

    config-file-header

    switch0a1172

    v1.2.9.44 / R750_NIK_1_2_584_002

    CLI v1.0

    SSD of encrypted file indicator

    @

    SSD-control-start

    config of SSD

    control of password file unrestricted SSD

    no control of the integrity of the file ssd

    SSD-control-end cb0a3fdb1f3a1af4e4430033719968c0

    !

    database of VLAN

    VLAN 13.20

    output

    ID of the vlan 20 voices

    Add a voice vlan Yes-table 0001e3 Siemens_AG_phone___

    Add a voice vlan Yes-table 00036 b Cisco_phone___

    Add a voice vlan Yes-table 00096e Avaya___

    Add a voice vlan Yes-table 000fe2 H3C_Aolynk___

    Add a voice vlan Yes-table 0060 b 9 Philips_and_NEC_AG_phone

    Add a voice vlan Yes-table 00d01e Pingtel_phone___

    VLAN voice Yes-table add Polycom/Veritel_phone___ 00e075

    Add a voice vlan Yes-table 00e0bb 3Com_phone___

    hostname switch0a1172

    username, encrypted password cisco c8e383b1dd7be99f878a387d87766e875404e0b3 priv

    LG 15

    The telnet server IP

    !

    interface vlan 13

    name "VLAN13".

    !

    interface vlan 20

    VOICE name

    !

    switch0a1172 #.

    It does it automatically via the port smart auto based on external trigger default. Devices to enable CDP and LLDP are supported.

    -Tom
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  • Route ip SF300

    Hi all

    below, that's what I do with the SF300 switch:

    I joined a cisco SF300 switch to support failover between GPRS and 3G netwoks between two different sites.

    To simulate the installation in our platform, I put the cisco SF300 linked to three computers to simulate 3G, GPRS and internal connections. could you please provide a procedure to begin this work.

    NB: I start with a simple configuration; create 3 vlans so I did the road ip between VLANs, that the problem is with ip route that's not possible to ping from one vlan to another, I did the same job with the cisco catalyst and it works but with the SF300 I don't know what the problem is exactly.

    Could you please help with that?

    Kind regards

    Derek IFAD

    Hello

    Is the main request in this post to establish connectivity L3?

    If so, as stated above, configure the switch to be in router mode.

    Configure IP addresses on the interfaces of the three VLANs.  If sure them VLANS are rising (trunk port or smart host).  Check that you have IP connectivity to the switch virtual interfaces.  If the switch is the default gateway for the devices on each VLAN, you have basic connectivity VLAN in the VLAN.

    See the post below for more details:

    https://supportforums.Cisco.com/thread/2153236

    Thank you

    Nelson

  • Need help with configuration of VLAN SF300-24

    Hello

    Let me Preface this with the fact that networking is certainly not my point hard, so here, any help is greatly appreciated.

    I'm trying to segment on a virtual desktop on its own VIRTUAL local network infrastructure using a Cisco SF300-24 Layer 3 switch. I can get the switch to connect to the network with the assigned VLAN 1 an IP address on the subnet of the network (192.168.16.X), but I can't get anything this is set up VLAN 20 (192.168.20.X subnet) to connect past the VLAN 20 (192.168.20.254) gateway IP. The ports assigned to 20 VLAN are defined to access the mode if it matters.

    Here is a diagram to illustrate what it looks like, as there is another (L2) switch involved.

    So I'm not really sure what I am missing here since all settings seem simple enough.

    Hi Simon, I recommend you remove any server active directory and essentially remove all safety factors. This will give the idea of where to start.

    If you take a quite basic set, 2 Windows 7 workstations without a Firewall window activated, they both work as expected.

    It must be remembered that in firewalls, even if they are able to respond to ICMP if the request is from a different subnet, they will not be because he is recognized as a network abroad. You must know the network on these computers or make sure the computer does not care.

    You may be able to do this by simply adding additional subnets on the advanced configuration of the network card (if it does not take too much address space) as an example.

    Or well, as you have discovered that you can add routes, which is a bit heavy and inconvienent, but effective.

    -Tom
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  • SF300 - 24 p with Avaya phones

    Hello everyone,

    I'm having a SF300 Switch - Cisco Small Business 24 p and I'm trying to connect it to an avaya phones and it gives me the headache of a lifetime for 3 days now. I tried all kinds of switchports and settings Vlan voice and LLDPs and all. I think I still messed with him vlan data after that was working fine and I have probably a configurations odd now would someone please help me with it.

    Thank you very much

    Here are the configs:-

    User name: cisco

    Password: *.

    switch0a1172 #.

    switch0a1172 #.

    switch0a1172 #.

    switch0a1172 #.

    switch0a1172 #sho run

    config-file-header

    switch0a1172

    v1.2.9.44 / R750_NIK_1_2_584_002

    CLI v1.0

    SSD of encrypted file indicator

    @

    SSD-control-start

    config of SSD

    control of password file unrestricted SSD

    no control of the integrity of the file ssd

    SSD-control-end cb0a3fdb1f3a1af4e4430033719968c0

    !

    database of VLAN

    VLAN 9,13,20

    output

    ID of the vlan 20 voices

    State of vlan automatic voice activated

    Add a voice vlan Yes-table 0001e3 Siemens_AG_phone___

    Add a voice vlan Yes-table 00036 b Cisco_phone___

    Add a voice vlan Yes-table 00096e Avaya___

    Add a voice vlan Yes-table 000fe2 H3C_Aolynk___

    Add a voice vlan Yes-table 0060 b 9 Philips_and_NEC_AG_

    Add a voice vlan Yes-table 00d01e Pingtel_phone___

    VLAN voice Yes-table add Polycom/Veritel_pho 00e075

    Add a voice vlan Yes-table 00e0bb 3Com_phone___

    VLAN voice Yes-table add 3475c 7 Avaya

    LLDP-med-network strategy 1 voice-signaling vlan 20 v

    hostname switch0a1172

    line telnet

    e c8e383b1dd7be99f878a387d87766e875404e0b3 password

    output

    Cisco c8e383b1dd7be99f8 encrypted password username

    LG 15

    The telnet server IP

    !

    interface vlan 13

    192.168.11.1 IP address 255.255.255.0

    !

    interface vlan 20

    no ip address dhcp

    !

    interface fastethernet1

    spanning tree portfast

    switchport mode access

    switchport access vlan 13

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet2

    spanning tree portfast

    switchport mode access

    switchport access vlan 13

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet3

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet4

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet5

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    fastethernet6 interface

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet7

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet8

    spanning tree portfast

    point to point spanning tree-type of link

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    description macro switch

    No auto smartport macro

    ! next order is internal.

    macro auto smartport unknown dynamic_type

    !

    interface fastethernet9

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet10

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet11

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet12

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet13

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet14

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet15

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet16

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet17

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet18

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet19

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet20

    spanning tree portfast

    point to point spanning tree-type of link

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    description macro switch

    No auto smartport macro

    ! next order is internal.

    macro auto smartport unknown dynamic_type

    !

    interface fastethernet21

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet22

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet23

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface fastethernet24

    spanning tree portfast

    switchport mode general

    VLAN allowed switchport General add 13 unidentified

    LLDP-med enable

    LLDP automatic address management

    No auto smartport macro

    !

    interface gigabitethernet4

    switchport mode access

    switchport access vlan 9

    !

    auto macro disabled

    switch0a1172 #.

    Hi Abdulrahman, the config seems kind of weird.

    I have just by default of the switch and follow this document.

    https://supportforums.Cisco.com/docs/doc-27005

    -Tom
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  • SF300 ARP Table overflow

    I have a SF300 mode layer 3 interVLAN routing with four other SF300s in mode layer 2.

    In my syslog, I noticed many errors of ARP Table overflow. We have wooded with over 300 knots somewhere that does not surprise me to see some overflow of ARP table but not at the rate I am actually receive.

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    Hi Carrick, your comments are accurate. Much of the firmware updates are not well and it was generally a best practice to factory default of the switch after the updates.

    I've always felt lost switches something after the 1.1.2.0 release as far as performance goes even with excellent features improvements that came after.

    SX500X switches are probably about the same price as a switch 3750 in some markets. Even if it was an additional amount of $500 per switch the 3750's would be a better choice as long as you can also offer contracts. SB switches are growing a lot and they are a very good product, especially at the price point. The guarantee is fabulous and the support is good.

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    Personally if you have a choice, I would not be surprised if you backward to 1.1.2.0 and missed the switch more or observe all the warnings of performance you would disappear. Personally, he was my most favorite release.

    -Tom
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  • SF300

    I have a question since last 2 on sf300.

    The problem is that sf300 isn't compatible full dhcp, so I put the different internet modem.

    I plugged an internet modem in vlan 1 kind of this vlan, users can access the internet and default gateway is nothing else than the Internet modem ip.  user in vlan are not communicate with other vlan because other users of vlan default gateway is the ip address of the Interface.  How can I give access to vlan 1 to access the other vlan.

    See attachment.

    I used a static route in any one or all 3 devices.

    Thank you

    Hi Sir, the switch cannot perform NAT functions, so only the vlan connection to the modem can work this way. The default gateway of the connecting servers must be that of the SVI switch while operating mode layer 3. The modem would require the static routes (not the switch) If you want as virtual LANs to internet connection and intervlan communication.

    -Tom
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  • SF300 Questions of the of the VLAN IP address

    I bought 3 SF300-48 switches to work AP1131AG Aironet wireless with my APs. I have now spent 1 VLAN for all to have a Guest_Wireless VLAN 200 as well as the default VLAN 1 for my Corporate_Network. The question that I have is that any client on my default VLAN receives an IP address from the DHCP Windows Server without problems, but when you connect to the guest VLAN you can't obtain an IP address.

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    Please evaluate the useful messages

  • SF300-48 - I want to have two VLANS communicate

    I want to segment our users our wireline users wireless and I bought this switch in the hope to be able to do.

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