About train_wreck

train_wreck · 04-03-2024

Hello, I have a CBS 220 that has several VLANs configured on it. Port GE2 is configured as a trunk to CBS 250 switch, and the 250 has an identical VLAN configuration. This is working fine. I noticed in the web interface that there is an "Uplink" opti...

train_wreck · 02-02-2024

So I have a flat network with a CBS220 as the main switch off of the router and a second CBS250-T-D that is powered by the 220. I have enabled IGMP snooping and enabled the IGMP querier on the 220, and enabled IGMP snooping (without querier) on the 2...

train_wreck · 01-20-2024

I recently purchased a CBS 220. It is running the latest firmware 2.0.2.12. I am trying to find where on the 220 to enable the MLD querier. If I go to Multicast -> MLD Snooping and click the help icon, it says the following:But I don't see the MLD Qu...

train_wreck · 08-02-2023

That mythical CBR device seems like it's canned, and Meraki is 2x-4x the cost of the RV series. Is it safe to say they are done here?

train_wreck · 08-04-2022

How can I download the language files to change the interface language, specifically for the RV34xx series SMB routers? The update page of the web interface references "Language File" information, but I cannot find where to download these.Especificam...

train_wreck · 04-23-2024

Hey thanks for the input. In my case at least I was seeing some IPTV services fail to pass through a firewall device with the multicast filtering option enabled. I saw through some tedious log management that the mDNS/SSDP reflector on the firewall w...

train_wreck · 04-03-2024

Yes I am reading more about the TPID setting. https://networkengineering.stackexchange.com/questions/19287/whats-the-difference-between-tpid-of-0x88a8-or-0x8100QinQ format uses 0x8a88. I've got no need for that so I will keep the setting as it is. Th...

train_wreck · 02-13-2024

desafortunamente en nuestra caso el dispotivo fue muerto teniamos que recolocarle

train_wreck · 02-07-2024

I can see during a tcpdump that the counter increases whenever any multicast traffic is received. Group query traffic will do it, and the Sonos periodically send discovery packets UDP dport 1900 to the multicast address, and that traffic will increas...

train_wreck · 02-02-2024

Hmm well actually there are 0 CRC but it looks like a ton of "input errors"? This is from the CLI on the 220, g/2 is connected to the 250 GigabitEthernet2 is up Hardware is Gigabit Ethernet Auto-duplex, Auto-speed, media type is Copper flow-con...

Member Since	‎03-04-2016 11:27 PM
Date Last Visited	‎04-24-2024 12:05 AM
Posts	125
Total Helpful Votes Received	47

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CBS 220 - "uplink" meaning

CBS220 lots of "invalid RX" IGMP

Where is MLD querier on CBS 220?

Cisco's given up on the RV market segment, right?

Where to download language files? RV34xx Series

Re: CBS350 IGMP and filtering unregistered multicast

Re: CBS 220 - "uplink" meaning

Re: SG500x Fatal Error: Reporting task: DHCP

Re: CBS220 lots of "invalid RX" IGMP

Re: CBS220 lots of "invalid RX" IGMP