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Managing a Switch Stack
How is the Firmware Updated on the Stack?
When you add a new switch to a stack, the Stack Firmware Synchronization
feature automatically synchronizes the firmware version with the version
running on the stack master. The synchronization operation may result in
either upgrade or downgrade of firmware on the mismatched stack member.
Upgrading the firmware on a stack of switches is the same as upgrading the
firmware on a single switch. After you download a new image by using the File
Download page or
copy
command, the downloaded image is distributed to all
the connected units of the stack. For more information about downloading
and installing images, see
"Managing Images and Files
" on page 349.
What is Stacking Standby?
A Standby unit is preconfigured in the stack. If the current Master unit fails,
the Standby unit becomes the Master unit. If no switch is pre-configured as
the Standby unit, the software automatically selects a Standby unit from the
existing stack units.
When the failed Master resumes normal operation, it joins the stack as a
member (not a Master) if the new Master unit has already been elected.
The Master unit copies its running configuration to the Standby unit
whenever it changes (subject to some restrictions to reduce overhead). This
enables the Standby unit to take over the stack operation with minimal
interruption if the Master unit becomes unavailable.
The running-config synchronization also occurs:
• when you save the running configuration to the startup configuration on
the Master unit.
• when the backup unit changes.
What is Nonstop Forwarding?
Networking devices, such as the PowerConnect 7000 Series switches, are
often described in terms of three semi-independent functions called the
forwarding plane, the control plane, and the management plane. The
forwarding plane forwards data packets and is implemented in hardware. The
control plane is the set of protocols that determine how the forwarding plane
should forward packets, deciding which data packets are allowed to be
forwarded and where they should go. Application software on the
Содержание PowerConnect 7024
Страница 134: ...134 Setting Basic Network Information ...
Страница 290: ...290 Managing General System Settings Figure 11 14 SNTP Servers Table ...
Страница 348: ...348 Configuring SNMP ...
Страница 430: ...430 Monitoring Switch Traffic ...
Страница 444: ...444 Configuring iSCSI Optimization ...
Страница 521: ...Configuring 802 1X and Port Based Security 521 Figure 19 8 Configure Port Security Settings 5 Click Apply ...
Страница 538: ...538 Configuring 802 1X and Port Based Security ...
Страница 585: ...Configuring VLANs 585 Figure 21 5 Add Ports to VLAN 4 Click Apply 5 Verify that the ports have been added to the VLAN ...
Страница 594: ...594 Configuring VLANs Figure 21 16 GVRP Port Parameters Table ...
Страница 600: ...600 Configuring VLANs Figure 21 23 Double VLAN Port Parameter Table ...
Страница 658: ...658 Configuring the Spanning Tree Protocol ...
Страница 693: ...Configuring Port Based Traffic Control 693 Figure 24 3 Storm Control 5 Click Apply ...
Страница 780: ...780 Configuring Connectivity Fault Management ...
Страница 804: ...804 Snooping and Inspecting Traffic Figure 27 17 DAI Interface Configuration Summary ...
Страница 818: ...818 Snooping and Inspecting Traffic ...
Страница 836: ...836 Configuring Link Aggregation ...
Страница 882: ...882 Configuring DHCP Server Settings ...
Страница 916: ...916 Configuring L2 and L3 Relay Features Figure 33 3 DHCP Relay Interface Summary ...
Страница 924: ...924 Configuring L2 and L3 Relay Features Figure 33 12 IP Helper Statistics ...
Страница 930: ...930 Configuring L2 and L3 Relay Features ...
Страница 1004: ...1004 Configuring OSPF and OSPFv3 ...
Страница 1044: ...1044 Configuring VRRP ...
Страница 1057: ...Configuring IPv6 Routing 1057 Figure 37 9 IPv6 Route Preferences ...
Страница 1064: ...1064 Configuring IPv6 Routing ...
Страница 1084: ...1084 Configuring DHCPv6 Server and Relay Settings ...
Страница 1091: ...Configuring Differentiated Services 1091 Figure 39 5 DiffServ Class Criteria ...
Страница 1114: ...1114 Configuring Differentiated Services ...
Страница 1130: ...1130 Configuring Class of Service ...
Страница 1136: ...1136 Configuring Auto VoIP ...
Страница 1216: ...1216 Managing IPv4 and IPv6 Multicast ...