Cisco CISCO1701-K9-RF Hardware Installation Guide - Page 159
Stacking of Cisco 10/100BASE-T Ethernet Switch HWICs, Related Documentation
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10/100BASE-T Ethernet Switch High-Speed WAN Interface Cards Stacking of Cisco 10/100BASE-T Ethernet Switch HWICs Stacking of Cisco 10/100BASE-T Ethernet Switch HWICs Stacking is the connection of two Ethernet switch HWICs resident in the same chassis so that they behave as a single switch. Stacking is accomplished by daisy-chaining the two cards together with an external RJ-45 crossover cable that is connected to the specified stacking port on each switch. When a chassis is populated with two Ethernet switch HWICs, the user must configure the cards to operate in stacked mode. Note There is no option to unstack two Ethernet switch HWICs. When two Ethernet switch HWICs are in the same chassis, they can operate only in stacked mode. If you configure the cards to operate unstacked, they will not operate correctly. You must designate one port on each switch to be the stacking port. On the HWIC-4ESW card, this port is nominally the first port (port 0), although any port can be chosen. On the HWIC-D-9ESW card, this port is nominally the ninth port (port 8), although any port can be chosen. We recommend the use of port 8 as the stacking port, because it has been designed as an extra port on the HWIC-D-9ESW card and does not provide inline power. Note Only one port on an Ethernet switch HWIC can be configured as a stacking port. All combinations of Ethernet switch HWICs may be stacked: two HWIC-D-9ESW cards, an HWIC-D-9ESW card with an HWIC-4ESW card, or two HWIC-4ESW cards. See the Configuration Guidelines for HWIC-4ESW and HWIC-D-9ESW Interface Cards document for information on how to configure stacking ports. Related Documentation Related documentation is available on Cisco.com or on the Product Documentation DVD. For more information, see the "Obtaining Documentation, Obtaining Support, and Security Guidelines" section on page 8. • Cisco EtherSwitch 4- and 9-Port High-Speed WAN Interface Cards for Cisco 1800 (Modular), Cisco 2800, and Cisco 3800 Series Integrated Services Routers, data sheet • Cisco EtherSwitch 4- and 9-Port High-Speed WAN Interface Cards for Cisco 1800 (Modular), Cisco 2800, and Cisco 3800 Series Integrated Services Routers, Q&A • Cisco Network Modules and Interface Cards Regulatory Compliance and Safety Information • Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards, Cisco IOS Release 12.3(8)T4 feature module OL-12850-01 7