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Catalyst
2960x堆栈是Cisco用户非常普遍的问题。您对Catalyst2960-X和Catalyst2960-XR系列的关键堆栈模块了解多少？2960-X和Catalyst
2960-XR上可以使用多少种类型的堆栈模块？在下面的部分中，我们将分享三个2960-X/Catalyst 2960-XR堆栈模块的主要比较和功能。
Cisco Catalyst 2960-X和Catalyst 2960-XR系列交换机提供三种类型的堆栈模块：
C2960X-Stack:Cisco Catalyst 2960-X FlexStack Plus堆栈模块
c2960x-fiber-stk:Catalyst 2960-x FlexStack扩展堆栈模块
C2960X-Hybrid-STK:FlexStack扩展混合动力模块
阅读堆栈模块的详细功能： C2960X-STACK, C2960X-FIBER-STK, C2960X-HYBRID-STK
堆栈模块插槽位置:
FlexStack Plus模块（C2960X-Stack）：
FlexStack Plus模块允许在铜缆上堆栈，并在短距离（高达3米[10英尺]）内提供高达80 Gbps的高频宽。模块支持0.5 m、1 m或3 m长（1.5 ft、3 ft或10 ft）的堆栈电缆。
CAB-STK-E-0.5M= (0.5-m [1.5-ft] cable)
CAB-STK-E-1M= (1-m [3-ft] cable)
CAB-STK-E-3M= (3-m [10-ft] cable)
FlexStack Plus模块
1.1 具有flexstack plus模块的堆栈拓扑
在一个配线柜中最多可以有八个Cisco Catalyst 2960-X或2960-XR系列交换机，它们可以堆栈在带有FlexStack Plus模块和电缆的环形拓扑中。环形拓扑结构有助于确保堆栈的冗余。
短程高频宽迭加
Cisco FlexStack扩展光纤模块 (C2960X-FIBER-STK):
该模块允许在SFP+端口上堆栈，并在更长的距离内提供高达40 gpb的堆栈频宽。它可以用于在建筑物不同楼层的配线间或校园内不同建筑物之间堆栈交换机。
FlexStack扩展光纤模块有两个SFP+埠。兼容性矩阵中列出了这些埠上支持的SFP+收发器。根据交换机之间所需的距离选择合适的SFP+收发器。
FlexStack扩展光纤模块
2.1 使用FlexStack扩展光纤模块的堆栈拓扑
单个Cisco Catalyst 2960-X或2960-XR系列交换机分布在建筑物不同楼层或校园不同建筑的多个配线间中，可以使用FlexStack扩展光纤模块进行堆栈。最多可以将八个开关堆栈在一起。堆栈频宽为40 Gbps。
在建筑物的多个楼层堆栈
在校园内跨多个楼层和多个建筑物堆放
FlexStack扩展混合动力模块（C2960X-Hybrid-STK）：
FlexStack扩展混合模块有一个SFP+埠和一个铜质FlexStack+埠。
光纤端口允许您长距离扩展堆栈。兼容性矩阵中列出了这些埠上支持的SFP+收发器。根据交换机之间的距离选择合适的SFP+收发器。
铜质flexstack
plus端口允许交换机与flexstack plus堆栈堆栈。此埠支持铜FlexStack Plus电缆：
CAB-STK-E-0.5M= (0.5-m [1.5-ft] cable)
CAB-STK-E-1M= (1-m [3-ft] cable)
CAB-STK-E-3M= (3-m [10-ft] cable)
FlexStack扩展混合模块
3.1 使用FlexStack扩展混合模块的堆栈拓扑
FlexStack扩展混合模块允许您将现有的交换机堆栈和分布在建筑物不同楼层或校园多个建筑物的多个配线间的新交换机组合在一起。
flexstack扩展混合模块上的铜flexstack plus埠应连接到c2960x堆栈模块上的flexstack plus埠。
FlexStack扩展混合模块上的光纤端口可用于远距离连接交换机。
FlexStack Plus和FlexStack扩展模块的混合堆栈
FlexStack Plus和FlexStack扩展模块的比较
FlexStack
Plus和FlexStack扩展模块的比较
FlexStack-Plus module | FlexStack-Extended fiber module | FlexStack-Extended hybrid module | |
| Model | C2960X-STACK | C2960X-FIBER-STK | C2960X-HYBRID-STK |
| Stack cables |
CAB-STK-E-0.5M/ CAB-STK-E-1M / CAB-STK-E-3M More Cisco Serial Cables Options | Fiber cable based on SFP+ transceiver chosen | Fiber cable based on SFP+ transceiver chosen and CAB-STK-E-0.5M /CAB-STK-E-1M / CAB-STK-E-3M |
| Distance between stack switches |
Short range limited to 3 m (10 ft) | Fiber port ensures long-range connectivity (distance limit based on SFP+ transceiver and fiber used) | 1 fiber port ensures long-range connectivity (distance limit based on SFP+ transceiver and fiber used) and short range limited to 3 m (10 ft) |
| Stack ports | 2x 40 Gbps | 2x 10 Gbps fiber |
1x 40 Gbps and 1x 10 Gbps |
| Number of switches in stack | 8 | 8 | 8 |
| Stacking bandwidth | 80 Gbps | 40 Gbps | 40 Gbps |
| Cisco IOS Software release required | 15.2(6)E or later | 15.2(6)E or later | |
| Compatible with 2960-S or 2960-S LAN Base | Yes | No | No |
如果存在Cisco Catalyst 2960-X或2960-XR系列交换机的现有堆栈，则混合FlexStack扩展模块允许您在配线柜的同一堆栈上添加新的交换机。
从Cisco IOS软件版本15.2（6）E开始，支持FlexStack扩展模块（光纤和混合模块），参照下表。
Cisco Catalyst 2960-X产品ID，用于Cisco DNA Essentials许可证
| Ports | Product ID | Description |
| 24 | C2960X-DNA-E-24= | C2960X DNA Essentials, 24-port term licenses |
| C2960X-DNA-E-24-3Y | C2960X DNA Essentials, 24-port, 3-year term licenses | |
| C2960X-DNA-E-24-5Y | C2960X DNA Essentials, 24-port, 5-year term licenses | |
| 48 | C2960X-DNA-E-48= | C2960X DNA Essentials, 48-port term licenses |
| C2960X-DNA-E-48-3Y | 960X DNA Essentials, 48-port, 3-year term licenses | |
| C2960X-DNA-E-48-5Y | C2960X DNA Essentials, 48-port, 5-year term licenses |
Cisco Catalyst 2960-xr用于Cisco DNA Essentials许可证的产品ID
| Ports | Product ID | Description |
| 24 | C2960XR-DNA-E-24= | C2960XR DNA Essentials, 24-port term licenses |
| C2960XR-DNA-E-24-3 | 2960XR DNA Essentials, 24-port, 3-year term licenses | |
| C2960XR-DNA-E-24-5 | C2960XR DNA Essentials, 24-port, 5-year term licenses | |
| 48 | C2960XR-DNA-E-48= | C2960XR DNA Essentials, 48-port term licenses |
| C2960XR-DNA-E-48-3 | C2960XR DNA Essentials, 48-port, 3-year term licenses | |
| C2960XR-DNA-E-48-5 | C2960XR DNA Essentials, 48-port, 5-year term licenses |
