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Stacking Dell PowerConnect 7000 Series Switches

Creating a Separate VLAN for File Downloads

When updating the firmware, it is helpful to keep the in-band management port in a different VLAN

and configure the PVID appropriately to avoid any network congestion or flooding issues through which

the file is being downloaded.

The CLI commands in the following example show how to configure port gi1/0/17 as an in-band

management port for firmware downloads or management access.

configure

vlan database

vlan 1000

exit

interface vlan 1000

ip address 192.168.21.11 255.255.255.0

exit

interface ethernet gi1/0/17

switchport mode general

switchport general pvid 1000

switchport general allowed vlan add 1000

switchport general allowed vlan remove 1

exit

management access-list MGMT_VLAN

permit ip-source 192.168.21.0 mask /24 vlan 1000 service ssh

exit

management access-class MGMT_VLAN

The switch now segregates traffic arriving on port gi1/0/17 onto VLAN 1000. All untagged packets that

enter the port are tagged with a VLAN ID of 1000. Additionally, only hosts with an IP address in the

192.168.21.XXX subnet are allowed access to the switch using SSH. The 192.168.XXX.XXX address block

is a private address space per RFC 1918. As an added security measure, network administrators can

configure their organization's edge routers to drop ingress and egress traffic destined to this address

block.

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