multigig switch

[bluesea2010]

Hi,

is it possible to connect 10/100 Mbps devices to multigig switch 

Thanks

[Martin L]

Yes, most (if not all) devices have ports that support lower speeds; I think all Cisco devices do. What device is it and do u have an issue?  You can always check a device specs paper to see what speeds are supported.  For 1 gig speed over Cat 5 Ethernet cable you will need cable labeled as Cat5e or Cat6

Regards, ML
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[Leo Laohoo]

10 Mbps, no it will not work. 

Just because the wireless NIC of a clients is 1 Gbps does not necessarily mean that it will not need 10 Mbps.  I have seen several conference/meeting room peripherals, with 1 Gbps NIC, that initializes at 10 Mbps.  If these peripherals are plugged into an mGIG switch, it will not get an IP address.  

[bluesea2010]

Hi ,

I plugged a cisco phone which is 10/100 on mgig port , it is not getting an ip address 

any work around 

Thanks

[Leo Laohoo]

1. What model is this phone?
2. Is the port configured for the voice VLAN?
3. Is the Voice VLAN allowed on the Trunk?
4. Is the Voice VLAN found in the VLAN database?
5. Is the Voice VLAN IP address enabled? 
6. Is the Voice VLAN DHCP pool configured correctly? 
7. How many phones were plugged into the mGIG switch and having problems?

[bluesea2010]

Hi @Leo Laohoo 

What model is this phone?
7906,7911
Is the port configured for the voice VLAN?
yes
Is the Voice VLAN allowed on the Trunk?
yes
Is the Voice VLAN found in the VLAN database?
yes
Is the Voice VLAN IP address enabled?
yes
Is the Voice VLAN DHCP pool configured correctly?
yes
How many phones were plugged into the mGIG switch and having problems?
all

Not only the phones any device 10/100 not working
example camera , this was running 3850 in 100Mbps

Thanks

[Leo Laohoo]

The phones are powering up but are not getting IP addresses, is this correct?

Ok, try this on the 3850 where the phones work:  Configure the port to be 100- and/or 1 Gbps by using the command "speed auto 100 1000".  Disconnect the phone(s) and plug them back in.  Are they behaving exactly the same thing?

[bluesea2010]

Hi

When did it on 3850 it is working 

Thanks

[Leo Laohoo]

What is the config of the port when the phone is connected to a 3850?

[bluesea2010]

speed 100 , rest all same 

Thanks

[Leo Laohoo]

What firmware is the multi-Gig switch/stack on?