Dell Networking 7048- Manuals

Stacking Dell PowerConnect 7000 Series Switches Page 4 # Figure 2 shows a recommended stacking configuration with dual stacking modules on each switch. Each switch connects to another with 128 Gbps of total bandwidth (4 ports @ 16 Gbps Tx and Rx each). Note that in the recommended configuration, the...

Stacking Dell PowerConnect 7000 Series Switches Page 5 Mixing M6348 and PC7000 Series Switches in a Stack PC7000 series and M6348 can be used interchangeably in a stack of up to 12 units. As with PC7000-series only stacks, all switches in a mixed stack must have the same firmware version. Starting w...

Stacking Dell PowerConnect 7000 Series Switches Page 7 Initial Installation and Power-up of a Stack Follow these instructions to create a stack: NOTE: Install units in a rack whenever possible to prevent the units and cables from being disturbed. 1. Install all stacking cables. Fully connect all cab...

Stacking Dell PowerConnect 7000 Series Switches Page 8 Selecting the Master Unit A stack manager is elected or re-elected based on the following considerations, in order: • Whether the switch that was previously the stack manager. • Whether the switch has the higher MAC address. When a switch is add...

Stacking Dell PowerConnect 7000 Series Switches Page 9 To configure the standby unit via the Web interface, view the Stacking > Unit Configuration page and select Standby for the Unit Type. Updating the Firmware on a Stack Automatic Update By default, firmware synchronization is performed automat...

Stacking Dell PowerConnect 7000 Series Switches Page 10 4. Reload the stack command. This resets the entire stack. The switches stop forwarding during the reset. 5. When the stack has reloaded, check the running firmware version using the show version command. Check that all stack members have joine...

Stacking Dell PowerConnect 7000 Series Switches Page 11 Mode........................................... FTP FTP Server IP.................................. 10.27.64.141 FTP Path....................................... FTP Filename................................... PC7000_4.0.0.6.stk Data Type..........

Stacking Dell PowerConnect 7000 Series Switches Page 16 Adding a Stack Member with Minimal Interruption When adding a new member to a stack, make sure that only the stack cables and no host-facing network cables are connected before powering up the new unit. Make sure the end-user links are not conn...

Stacking Dell PowerConnect 7000 Series Switches Page 17 Removing a Stack Member with Minimal Interruption NOTE: This migration process can be disruptive, so schedule some outage time. To minimize any disruption, plan on having one or more test scenarios prepared in order to verify that the migrated ...

Stacking Dell PowerConnect 7000 Series Switches Page 18 Merging Two Operational Stacks The recommended procedure for merging two operational stacks is as follows: Caution! This procedure is disruptive and requires a network outage. 1. Always power off all units in one stack before connecting to anot...

Stacking Dell PowerConnect 7000 Series Switches Page 19 If PoE is enabled on a switch port shortly before a master failover and the hardware status change had not yet been communicated to the backup unit, the switch will continue to provide PoE power even though PoE is not enabled for the port in th...

Stacking Dell PowerConnect 7000 Series Switches Page 20 console#show switch Management Standby Preconfig Plugged-in Switch Code Switch Status Status Model ID Model ID Status Version ------ ----------- ------------ --------- ----------- ------------ -------- 1 Stack Mbr Standby PCT7048 PCT7048 OK 4.0...

Stacking Dell PowerConnect 7000 Series Switches Page 21 Scenario 3 The following example contains a similar condition with a master unit failover and consequent stack split with five units in the stack, as # Figure 5 shows. Figure 5. Stack Split with Manager Failure In this example, there is no link...

Stacking Dell PowerConnect 7000 Series Switches Page 22 Nonstop Forwarding A switch can be described in terms of three semi-independent functions called the forwarding plane, the control plane, and the management plane: • Forwarding Plane — The set of hardware components that forward data packets wi...

Stacking Dell PowerConnect 7000 Series Switches Page 23 To take full advantage of nonstop forwarding, layer 2 connections to neighbors should be via port channels that span two or more stack units, and layer 3 routes should be equal-cost multi-path (ECMP) routes. ECMP provides load balancing, using ...

Stacking Dell PowerConnect 7000 Series Switches Page 24 Figure 6. Nonstop Forwarding Example 1 2 3 Host 1 Host 2 Host 3 Switch 1 Switch 2 Router 1 Video stream OSPF PIM-SM Spanning Tree IGMP VLAN 10 VLAN 20 192.168.5.100 192.168.20.100 192.168.20.101

Stacking Dell PowerConnect 7000 Series Switches Page 30 NSF Re-convergence Timing As mentioned in the previous section, NSF protects against failures by check-pointing information to a standby unit. In an NSF-protected stack, the worst-case scenario is when the master unit fails. The following stati...

Stacking Dell PowerConnect 7000 Series Switches Page 31 Small Configuration • 6 switches stacked • 4 VLANs, all ports are members of all VLANs • 2/2 static/dynamic lags with 8 members each • 1 MSTP instance with VLANs • 15 ACLs applied on 15 interfaces • 5 Diffserv service interfaces with policies o...

Stacking Dell PowerConnect 7000 Series Switches Page 32 Stacking Web Interface The stacking configuration and monitoring Web pages are accessed from the System > Stack Management menu. The following image shows a list of the Web pages that are available for the stacking feature. Summary This pape...