C Ist P Orts - Black Box LPB2910A User Manual

2-­‐8.4 C IST P orts
When y ou i mplement a S panning T ree p rotocol o n t he s witch, y ou n eed t o c onfigure t he C IST P orts.
The s ection d escribes h ow t o i nspect t he t o i nspect t he c urrent S TP C IST p ort c onfigurations, a nd
possibly c hange t hem.
Web I nterface
To c onfigure t he S panning T ree C IST P orts p arameters i n t he w eb i nterface:
1. Click C onfiguration, S panning T ree, C IST P orts.
2. Scroll a nd s et a ll p arameters o f C IST A ggregated P ort C onfiguration.
3. Enable o r d isable t he S TP, t hen s croll a nd s et a ll p arameters o f t he C IST n ormal P ort c onfiguration.
4. Click A pply t o s ave t he s etting.
5. To c ancel t he s etting, c lick t he R eset b utton. I t w ill r evert t o p reviously s aved v alues.
Figure 2 -­‐8.4: The S TP C IST P ort C onfiguration
Parameter d escription:
 Port:
The s witch p ort n umber o f t he l ogical S TP p ort.
STP E nabled:

Controls w hether S TP i s e nabled o n t his s witch p ort.
Path C ost:

Controls the path cost incurred by the port. The Auto setting will set the path cost as appropriate
by the physical link speed, using the 802.1D recommended values. Using the Specific setting, a
user-­‐defined value can be entered. The path cost is used when establishing the active topology of
the network. Lower path cost ports are chosen as forwarding ports in favor of higher path cost
ports. V alid v alues a re i n t he r ange 1 t o 2 00000000.
106
Publication date: Sept, 2015
Revision A1