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Conference netcad::hub_mgnt

Title:	DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:	Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:	NETCAD::COLELLADT

Created:	Wed Nov 13 1991
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	4455
Total number of notes:	16761

4209.0. "DS900EF, 900TP, 6 out of 12 Internal LAN's ?" by CHEFS::BARKER_E (Ummm...) Tue Feb 11 1997 07:35

    Hi,
    
    	Following on from note 4173 ...
    
    	If we upgrade the hub chassis firmware to support 12 internal
    Ethernet LAN's, can the DECswitch 900EF and PORTswitch 900TP modules
    then connect to up to 6 of these 12 LAN's or are they limited to the
    first 6 of the 12 created, or some other combination ?  I have a
    customer with DEChub 900's with multiple DECswitch 900EF's in each one,
    using 6 internal ethernet LAN's and further LAN's by grouping
    PORTswitch ports and making external connections to the fron of the
    DECswitch 900EF's.      Being able to make connections to up to 6 of 12
    internal LAN's from each of these modules would be a much tidier
    solution.
    
    	Thanks,
    
    		Euan Barker

T.R	Title	User	Date	Lines
4209.1	Only the first 6.	NETCAD::GALLAGHER	`Tue Feb 11 1997 10:01`	14
	Euan, It's not a firmware thing - it's a hardware thing which required firmware support. The DECswitch900EF will always only be able to reach any of the first 6 backplane LANs. Ditto for the PORTswitch products. Their hardware can only reach the first 6 backplane LANs. Newer products, like the 12-LAN repeater (DETPX, aka PORTswitch900TPX) will be able to connect to 12 backplane LANs. The VN products can also connect to 12 backplane LANs. -Shawn
4209.2	cv 1.1a introduces light & dark-green LANs	NETCAD::MOWER	`Sat Mar 01 1997 22:36`	52
	> The DECswitch900EF will always only be able to reach any of the first > 6 backplane LANs. Ditto for the PORTswitch products. Their hardware can > only reach the first 6 backplane LANs. Shawn's reply, (-.1), is generally correct; allow me to expand on his phrase "first 6 backplane LANs"... Backplane LANs are created in MCM's LAN interconnect window. Prior to the advent of the VNswitches and the TPX, only "Hub900 Ethernet" (labeled "Ethernet" in clearVISN 1.0 and prior), was possible. With clearVISN 1.1a "More Hub900 Ethernet" has been added to the drop-down list "LAN type" in the "create [backplane] LAN" dialog box. Your existing modules can utilize up to 6 "Hub900 Ethernet" LANs, (illustrated in light-green in the LAN interconnect window). (You can actually create more than 6, but you can only connect to 6 max). When using VNswitch or TPX modules, you can additionally utilize up to 6 "More Hub900 Ethernet" LANs, (illustrated as dark-green lines). The VNswitch supports 12 Ethernet ports, 6 light-green, 5 dark-green, and 1 yellow, (both "More Hub900 Ethernet" and "Thinwire" capable). (Yellow backplane-ports/pull-downs are capable of connecting to two or more different backplane LAN types). The TPX supports 13 Ethernet ports, 12 yellow, (both "Hub900 Ethernet" and "More Hub900 Ethernet" capable), plus one "Thinwire" (blue). The LAN interconnect view will not permit a user to connect a light-green backplane-port/pull-down to a dark-green backplane LAN, or vice-versa. When the user clicks on a backplane-port/pull-down to drag it onto a backplane LAN, LANs that cannot be connected to will be greyed-out. (This grey-out mechanism makes it unnecessary to memorize what yellow ports on different modules are capable of connecting to). So, existing products can only reach light-green, ("Hub900 Ethernet"), backplane LANs. The VNswitch and TPX modules will be able to reach both light-green, ("Hub900 Ethernet"), and dark-green, ("More Hub900 Ethernet"), backplane LANs. It makes no difference what order the LANs are created, or which backplane LANs are "first" or "last". Carl Mower LAN interconnect clearVISN