Connecting High-Speed Stacking Cables
SecureStack C2 Installation Guide 3-9
Figure 3-5 Fastening the Switch to the Rack
3. Ifyouare installingthisswitchinastackedconfiguration,repeatthisprocedurefor
eachswitchuntilallswitcheshavebeeninstalledinthestack,thenproceedto
“ConnectingHigh‐SpeedStackingCables”onpage 3‐9.Otherwise,proceedto
“ConnectingACandRPSPower”onpage 3‐13.
Connecting High-Speed Stacking Cables
Thestackofswitchescanbeconnectedinaringordaisychaintopology.Inaring
topologyalltheswitchesareconnected.Theonlydifferenceinthecableconnectionsina
daisychaintopologyisthatonecableisnotinstalled.
Upto8switchescanbestackedtogetherand
connectedbyhigh‐speedstackingcables.
Youcanaddswitchesandreachuptoamaximumof384Ethernetportsperstack.The
high‐speedstackingcablesallowtheentirestacktooperatewithasingleIPaddress.
Figure 3‐6showsanexampleofafour‐highstackconnectedina
ringtopology.AllSTACK
DOWNandSTACKUPconnectorsareusedintheinstal lation.Thehigh‐speedstacking
cableconnectionsarefromtheSTACKDOWNconnectorofoneswitchtotheSTACKUP
connectorofthenextswitchupinthestack.Ahigh‐speedstackingcableconnectionfrom
the
STACKDOWNconnectoroftheswitchatthetopofthestacktotheSTACKUP
connectoratthebottomofthestackcompletestheringconnection.Inadaisychain
topology,onecableisnotused.
1 Rails of 19-inch rack 2 Mounting screws (supplied by user)
Console
1
2
23
24
25 26
CPU
UP
RPS
MGR
DOWN
13
14
11
12
25 26242322212019181716151413121110987654321
C2K122-24
TX RX TX RX
À
Á
Á
À
Note: The high-speed stacking cables are optional items and must be ordered separately.
There are two types of cables:
• C2CAB-SHORT cable (30.6 cm (12 in) long) to connect two adjacent switches in the
stack.
• C2CAB-LONG cable (1.0 m (36.2 in) long) to connect from the top switch to the bottom
switch in the stack. You only need one C2CAB-LONG cable per stack.
If the stack is in a configuration where the adjacent switches are too far apart for C2CAB-
SHORT cables, C2CAB-LONG cables can be used for the connections.
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