Core Layer

no!all!no!all! Posts: 245Member ■■□□□□□□□□
Does the core layer have to be switches? Or can it have routers as well? I'm a little confused as to why the core layer, from what I've been reading, uses switches instead of routers...can someone help clarify a bit? thanks :)
A+, N+, S+, CCNA:RS, CCNA:Sec

"In high society TCP is more welcome than UDP. At least it knows a proper handshake" - Ben Franklin

2019 Goals: CCNP:RS & relocate to St. Pete, FL!

Comments

  • ram1101ram1101 Posts: 32Member ■■□□□□□□□□
    Layer3 switches that can do routing internally, a router is usually at the edge connecting remote sites of the network,
    the core layer is usually at the local site routing traffic accross the other multiple distribution layers.

    so for example



    computers---->access layer switch--->distribution layer switch
    > core switch
    >distribution switch
    >access switch---->Server
    or
    computers---->Cisco 2960G
    >Cisco 3750X
    >cisco 6800
    >Cisco 3750X
    >Cisco 4948E-F or 2xL2 3750X
    > server
    |
    |
    EDGE/ Network
    (ASA, 3900 ISR, MPLS EDGE, etc)
  • theodoxatheodoxa Posts: 1,340Member
    Layer 3 Switches are faster than Routers as they perform many of their functions (Switching, ACLs, etc...) on Hardware instead of Software. Unfortunately, L3 Switches generally lack features needed at the network edge (T1-Based WAN, BGP, NAT, etc...)
    R&S: CCENT CCNA CCNP CCIE [ ]
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  • no!all!no!all! Posts: 245Member ■■□□□□□□□□
    @ram1101, I think I understand it much better now, thank you both for the input!
    A+, N+, S+, CCNA:RS, CCNA:Sec

    "In high society TCP is more welcome than UDP. At least it knows a proper handshake" - Ben Franklin

    2019 Goals: CCNP:RS & relocate to St. Pete, FL!
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