Do switches have serial ports?
webspider
Member Posts: 30 ■■□□□□□□□□
in CCNA & CCENT
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networker050184
Mod Posts: 11,962 Mod
What do you think? What L2 protocols are used on serial links? What about on ethernet switches?An expert is a man who has made all the mistakes which can be made. -
networker050184
Mod Posts: 11,962 Mod
I was trying to point you in the direction of where to look.An expert is a man who has made all the mistakes which can be made.
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webspider
Member Posts: 30 ■■□□□□□□□□
Ok it is HDLC,PPP,802.3 ,Frame Relay protocols in L2,now what?
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Carpe Porcus
Member Posts: 84 ■■□□□□□□□□
Why would you think or need a serial port is required on a switch for what purpose and to what end would you use one?“I'm always admitting I'm wrong. That's how I eventually get to right.” -
theodoxa
Member Posts: 1,340 ■■■■□□□□□□
I haven't seen one. But, it is possible, such an option could exist on higher-end "expandable" or "modular" switches. If Cisco would release a 3560/3750 with a few (1-4) T1 Ports [or make some T1 SFPs], there would be no need for a router ever again. You could just connect your WAN (MPLS, Frame Relay, etc...) right to your Layer 3 Switch. Based on what I've read, I believe this is already possible with MPLS over MetroE (Ethernet).R&S: CCENT → CCNA → CCNP → CCIE [ ]
Security: CCNA [ ]
Virtualization: VCA-DCV [ ] -
DirtySouth
Member Posts: 314 ■□□□□□□□□□
Good grief, people. Just answer the guys question unless of course you don't know the answer. OP, I am not aware of any switches that have serial ports like the ones you're probably thinking of. There are layer-3 switches that have routing capabilities like theodoxa mentioned. A traditional layer 2 switch is not going to have a serial port though.
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networker050184
Mod Posts: 11,962 Mod
DirtySouth wrote: »Good grief, people. Just answer the guys question unless of course you don't know the answer.
Now come on, that isn't how you help someone learn. Give a man a fish blah blah.....An expert is a man who has made all the mistakes which can be made. -
bbarrick
Member Posts: 242 ■■■□□□□□□□
networker050184 wrote: »Now come on, that isn't how you help someone learn. Give a man a fish blah blah.....
Unless it's a pufferfish, in which case, he would have no need to learn anymore. -
DirtySouth
Member Posts: 314 ■□□□□□□□□□
In most cases, I completely agree with you.networker050184 wrote: »Now come on, that isn't how you help someone learn. Give a man a fish blah blah.....
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theodoxa
Member Posts: 1,340 ■■■■□□□□□□
FrankGuthrie wrote: »Isn't a (blue) Console cable a serial connection?
Yes, but probably not the kind the OP was referring to. Its a low-speed Asynchronous? Serial connection which is used for out-of-band management. The main reason for wanting a Synchronous Serial port (e.g. WIC-1T, WIC-1DSU-T1) would be to connect a switch to a Leased Line, Frame Relay, or MPLS (using T1). I think T1 ports would be a nice addition to Layer 3 switches, because they would eliminate the need for a router in many cases.R&S: CCENT → CCNA → CCNP → CCIE [ ]
Security: CCNA [ ]
Virtualization: VCA-DCV [ ]
