HP XC System Software 3.2.1 manual Super Root Switch, Wire Trunking

3.3.3.1 Switch Connections and HP Workstations

HP model xw workstations do not have console ports. Only the Root Administration Switch supports mixing nodes without console management ports with nodes that have console management ports (that is, all other supported server models).

HP workstations connected to the Root Administration Switch must be connected to the next lower-numbered contiguous set of ports immediately below the nodes that have console management ports.

For example, if nodes with console management ports are connected to ports 42 through 36 on the Root Administration Switch, the console ports are connected to ports 42 through 36 on the Console Switch. Workstations must be connected starting at port 35 and lower to the Root Administration Switch; the corresponding ports on the Console Switch are empty.

3.3.4 Super Root Switch

Figure 3-4shows the Super Root Switch, which is a ProCurve 2848. A Super Root switch configuration supports the use of trunking to expand the bandwidth of the connection between the Root Administration Switch and the Super Root Switch. The connection can be as simple as one wire and as complex as four. See “Trunking and Switch Choices” (page 45) for more information about trunking and the Super Root Switch.

You must configure trunks on both switches before plugging in the cables between the switches. Otherwise, a loop is created between the two switches.

Figure 3-4illustrates a ProCurve 2848 Super Root Switch.

Figure 3-4 ProCurve 2848 Super Root Switch

Ports 1, 3, 5, and 7 are the first four ports located on the top row

	hp procurve		1 2	3 4	5 6 7 8	9 10 11 12 13 14	15 16	17 18	19 20 21 22 23 24 25 26 27 28 29 30 31 32	33 34 35 36 37 38	39 40 41 42 43 44
	switch 2848		1				15	17	31	33
	J4904A
	RPS	LED	Lnk								T 45 M T 46 M T 47 M T 48 M
			Ac t
Po w er Fan		Mode
			FD x
	Test		Sp d
Fa ult	Re set		Cl ea r Spd m ode :	of f = 1 0 Mbps	fla sh = 10 0 Mbps	on = 10 0 0 Mbps	16	18	32	34	! Us e onl y one (T or M) for ea ch G igabit port
			Ports 2, 4, 6, and 8								Gigabit
			are the first four ports						10/100/1000 Base-TX RJ-45 Ports		Ethernet Ports
			located on the bottom row

Table 3-2shows how ports are allocated for large-scale systems with multiple regions.

Table 3-2 Trunking Port Use on Large-Scale Systems with Multiple Regions

		Ports Used on Root Administration
Trunking Type	Ports Used on Super Root Switch	Switch
4-wire Trunking:
Region 1	1 through 4	43 through 46
Region 2	5 through 8	43 through 46
Region 3	13 through 16	43 through 46
2-wire Trunking:
Region 1	1 and 2	45 and 46
Region 2	3 and 4	45 and 46
Region 3	5 and 6	45 and 46
Region 4	7 and 8	45 and 46
Region 5	9 and 10	45 and 46
Region 6	13 and 14	45 and 46

3.3 Switches 49