About GVD

GVD · 12-21-2022

Hi, currently designing some Stackwise virtual stacks with 9500 & C9600 (single sup).in regards to the SVL links, does it matter which port speed we use for those? do those links need high speeds?Wondering if I should "waste" 40G ports for those, or ...

GVD · 12-07-2022

Looking into following line cards for the C9600:C9600-LC-48YLC9600-LC-40YL4CDboth seem to support 50Gbps SFP56. Does this mean that these line cards can take 10G SFP+ , 25G SFP28 and 50G SFP56 form factor? meaning those form factors are all compatibl...

GVD · 12-15-2020

hi all, Looking at OSPF as a IGP protocol on a campus/enterprise network, should it be a given that you use a L3 core, instead of a core setup with stackwise-virtual? This will give you the opportunity to make each core DR/BDR. If you would run OSPF ...

GVD · 12-03-2020

Hi all, seems the largest power supply for a IE3300 is a 480W. If an AP1562 outdoor AP needs 32W, does that mean the IE3300 has a limit of 15 POE devices? other question. It seems the IE3000 power supplies have two DC outs. Does that mean you can pow...

GVD · 05-29-2020

Hi , a question in regards of client behavior. In a case where you would need to tweak the channels in the 5Ghz band (let's say broadcast only UNII 1 & 2) , could this negatively influence clients which are still scanning the entire 5Ghz channel rang...

GVD · 12-07-2022

following document mentions the C9600-LC-48YL also supporting 50Gbps, when paired with the new 9600X-SUP-2 supervisor.https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9600/hardware/install/b-c9600-lc-installation-note.html

GVD · 12-15-2020

(Light bulb moment) you are absolutely right, I forgot about the fact that point-to-point does not require BDR!that would work indeed.

GVD · 12-08-2020

that's interesting... I would recommend not disabling snooping, maybe open a TAC case for the issue and see if there's a way to still have igmp snooping enabled and get your application to work. Maybe you can get it to work by changing some of the de...

GVD · 12-08-2020

9300L and 9300 are indeed not mixable, they also have a different stackwise port. 9300L uses Stackwise320, and the regular 9300 use Stackwise480.You can mix models in the 9300 series, also would not recommend it because of confusion it may cause. One...

GVD · 12-08-2020

configure subnet 172.17.221.0/28 on the SVI

Member Since	‎04-18-2018 06:29 AM
Date Last Visited	‎05-31-2023 12:02 AM
Posts	20
Total Helpful Votes Received	10

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C9600/C9500 SVL link bandwidth

C9600 50G & 25G compatibility

OSPF with stackwise-virtual platform (C9500)

IE3300 POE budget

impact of clients scanning channels which aren't enabled on SSID

Re: C9600 50G & 25G compatibility

Re: OSPF with stackwise-virtual platform (C9500)

Re: IGMP on NEXUS

Re: C9300-48P and C9300-24UXB mixed stacks (mixing high scale models with regular 9300 switches)

Re: how can i have multiple subnet from same vlan