05-10-2010 12:14 PM - edited 03-06-2019 11:01 AM
Hi, I never configured a 4948, so I have a question or 2.
Does the 4948 come with the 4 SFP ports as an option or do they always come with the other 48 10/100/1000 ports? I'd like to use the 48 ports for servers and the 4 SFPs for uplinks
I got this from the Cisco website, too...
"1The Cisco Catalyst 4948 has 52 physical switching ports (48 10/100/1000 and 4 SFP) on the front panel. Up to 48 of these ports can be active at one time in any combination."
So, part 2 of my question is that, if you do have the 4 extra sfp ports, can you use them on top of the other 48?
I know what the Cisco footnote says, but I want someone with practical experience with the 4948.
Thanks
Victor
05-10-2010 02:42 PM
lamav wrote:
Hi, I never configured a 4948, so I have a question or 2.
Does the 4948 come with the 4 SFP ports as an option or do they always come with the other 48 10/100/1000 ports? I'd like to use the 48 ports for servers and the 4 SFPs for uplinks
I got this from the Cisco website, too...
"1The Cisco Catalyst 4948 has 52 physical switching ports (48 10/100/1000 and 4 SFP) on the front panel. Up to 48 of these ports can be active at one time in any combination."
So, part 2 of my question is that, if you do have the 4 extra sfp ports, can you use them on top of the other 48?
I know what the Cisco footnote says, but I want someone with practical experience with the 4948.
Thanks
Victor
Victor
You can only use 48 ports of the 52 available. The 4 SFP ports are there is you want to use fibre for your uplinks but if you use these then 4 of the 48 RJ45 ports are no longer useable.
Basically you get either 48 RJ45 ports or some combination of 44-48/1 - 4 SFP ports.
Jon
05-10-2010 02:56 PM
OK, great..that swhat I wanted to make sure of....
But do those sfp ports use a different port nomenclature?
for example, the first 48 rj 45s are g1/1 - gi1/48....what are the sfps then? Or is it a case where its just 1-48 no matter what combination of ports you use.....?
Thanks
05-10-2010 03:03 PM
lamav wrote:
OK, great..that swhat I wanted to make sure of....
But do those sfp ports use a different port nomenclature?
for example, the first 48 rj 45s are g1/1 - gi1/48....what are the sfps then? Or is it a case where its just 1-48 no matter what combination of ports you use.....?
Thanks
Victor
52 physical ports on the switch. The last 8 ports are both labelled as interfaces gi1/45 - gi1/48.
Jon
05-10-2010 03:50 PM
Huh?
OK, I must be stuck on stupid.....can you explain further....? All 8 ports are both labeled 45-48?
Sorry to be a pain in the ass
05-10-2010 03:59 PM
lamav wrote:
Huh?
OK, I must be stuck on stupid.....can you explain further....? All 8 ports are both labeled 45-48?
Sorry to be a pain in the ***
Ports gi1/1 - 44 are rj45 ports. You then have the option to use either the other 4 rj45 ports which would be gi1/45 - 48 or to use the 4 SFP ports which would be gi1/45 - 48. That's fine because you can't use both the last 4 rj45 ports and the 4 sfp ports so there will be no overlapping in interface numbering.
Jon
05-10-2010 05:10 PM
Oh.
Thanks
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