D-Link DGS-3630 SERIES Manuale utente

DGS-3630 Series Switches

Stacking Switches

▪With 2-port stacking the last two 10G ports 27 and 28 (or 51 and 52) are

used for stacking (in DGS-3630 series).

▪Once stacking is enabled both ports 27 and 28 (or 51 and 52) are switched

into stacking (non-Ethernet) mode. Ports 25-26 (49-50) can still be used for

regular 10Gig Ethernet connectivity.

▪With 4-port stacking enabled, all four 10G ports are dedicated to stacking and

cannot be used for regular 10Gig Ethernet connectivity.

27-28 are dedicated to Stacking when

2-port stacking is enabled (40 Gbps Stacking)

25-26 and 27-28 are dedicated to Stacking when

4-port stacking is enabled (80 Gbps Stacking)

Stacking: 2-port and 4-port stacking

DGS-3630-28TC

Stacking Switches

Switch roles are assigned automatically during a Stack Election Stage.

You can influence the election results by manually assigning Stack Priorities.

Switch Roles in a Stack

Primary Master

(identified as H)

Leader of the stack.

Monitors and controls the

stack, assigns Stack IDs,

synchronises configurations.

Assigned to a switch with

lowest MAC

highest priority (lower priority

number, e.g. 1)

Backup Master

(identified as h)

Backup to the Primary Master.

Holds a copy of stack config,

monitors the Primary Master

and other switches.

Can be manually set by assigning

second highest priority after

Primary Master (e.g. 2)

Slave

Other switches in the stack.

Can take Backup Master and

Primary Master roles if those

are removed.

Default priority is 32

Stacking Switches

Best practice when setting up a stack: configure Primary and Backup Masters with

higher priority (lower priority numbers), so that role selection does not only rely on

MAC addresses.

Hot Swapping in a Stack

Slave

The replacement Slave Switch will automatically accept

configuration pushed by the Primary Master switch.

Good practice is to set Stack Priority to 63 on the replacement

switch before connecting it to the stack.

Backup Master

Once a Backup Master switch is hot removed, a new Backup

Master is elected from existing Slave switches.

The new replacement switch can be hot swapped and elected

either as Slave or as Backup Master.

Primary Master

Once a Primary Master switch is hot removed, the Backup

Master becomes Primary Master, inheriting MAC and IP

addresses of the Primary Master.

A new Backup Master is elected from existing Slave switches.

Stacking Switches (CLI)

▪Before physically connecting the switches: Enable stacking and set one of the

switches with lower stacking priority number, so it becomes Stack Master.

Switch# stack

Switch# stack bandwidth 2

Switch# stack 1 priority 1

Switch# copy running-config startup-config

Switch# reboot

…

Switch# show stack

2/h

1/H

Switch# stack

Switch# stack bandwidth 2

Switch# copy running-config startup-config

Switch# reboot

Once stacked, the management of the switch stack can only be done through the

“Primary Master” switch.

Stacking Switches (GUI)

▪Make sure firmware version is the same in all switches.

▪Management > Stacking > Physical Stacking.

▪Set Stacking Mode to “Enabled”, click Apply.

▪Set Priority to 1 (on Master), click Apply.

▪Save Settings and reboot the switch.

▪Enable Stacking on second switch. Save and reboot.

▪Connect the switches via stacking ports. The Slave switch will reboot and will

show its new Stack ID.

MASTER

SWITCH

Slave switches can be left at default 32

Stacking Switches (GUI) cont.

▪When switches are stacked only the Master switch is accessible for management.

▪Slave switches’ configuration is accessible through Master:

Stacking Switches

▪To remove the SFP+ Direct Attach cable –pull back on the cable release ring.

▪To disable stacking:

Switch# no stack

Switch# copy running-config startup-config

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