Cisco Catalyst 3560-X User Manual

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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Managing Switch Stacks
Understanding Switch Stacks
Rolling Stack Upgrade
After you upgrade or downgrade a stack, it reloads, and the connected hosts lose network connectivity.
Use the rolling stack upgrade feature to minimize the network disruption only when your stack has
redundant links. The members are upgraded one at a time.
Stack Configuration
You can run a rolling stack upgrade on a stack with this configuration:
Figure 1-3 Stack with Redundant Links
•
A dual-attached host, such as a server or an access point, is connected to two members through a
cross-stack EtherChannel.
• The stack has these settings:
– The members are connected through their StackWise Plus ports in a stack ring with redundant
connections. For configuration examples, see the switch hardware installation guide.
– The switch enables the persistent MAC address during the upgrade.
• At least one redundant uplink is connected to the network. The uplink has an active switch and a
standby switch.
– A member that has an interface with the active role is an active switch.
– Another member that has an interface with the standby role is a standby switch.
Upgrade Process
Before you start the process, configure a redundant uplink to the network to ensure that the stack has
network connectivity.You can also set the stack boot time.
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Member 1
LACP cross-stack
Etherchannel
Active switch
Standby switch
Member 2
Member 3
Member 4
Member 5
Member 6
Member 7
Member 8
Member 9
Dual-attached
host
Network
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2
Stack
Port 1
Stack
Port 2

Cisco Catalyst 3560-X Specifications

General

Enclosure Type	Rack-mountable - 1U
Subtype	Gigabit Ethernet
Ports	48 x 10/100/1000 + 4 x SFP
Flash Memory	64 MB
Power Device	Internal power supply
Voltage Required	AC 120/230 V (50/60 Hz)
Operating System	Cisco IOS
Device Type	Switch
Performance	Switching capacity: 128 Gbps
Jumbo Frame Support	Yes
Routing Protocol	RIP-1, RIP-2, EIGRP
Remote Management Protocol	SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP, HTTPS
Features	DHCP support, VLAN support, QoS, IPv6 support, Syslog
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad, IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ag, IEEE 802.3at
Stacking	Stackable
Security Features	SSH, RADIUS, TACACS+
Management	CLI
Dimensions (H x W x D)	17.5 in
Operating Temperature	32 to 113 °F (0 to 45 °C)
Humidity	10 - 95% (non-condensing)