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--- networking:fvcaccessngi [17/01/2024 17:59] – created - external edit 127.0.0.1
+++ networking:fvcaccessngi [03/09/2025 08:36] (current) – [AccessNGI Configuration] andrew
@@ Line 9: / Line 9: @@
 The FVC accessNGI (**N**ext**G**eneration**I**nternet) atm switch is manufactured by First Virtual Communications ([[http://www.fvc.com|www.fvc.com]]) which seems seems defunct now.
 It is intended as an access level switch and interfaces with 2mb/s leased lines, 25MB/s workstations and 155MB/s servers.
-It supports both SVCs and PVCs. The basic switch has an ethernet port on the control module next to the RJ45 console connection. This is not the same pinout as Cisco use. The ethernet port interfaces to the atm network using Lan Emulation. An alternative module can supply 6 ethernet ports.
+It supports both SVCs and PVCs. The basic switch has an ethernet port on the control module next to the RJ45 console connection. This is not the same pinout as Cisco use. The ethernet port interfaces to the atm network using Lan Emulation. An alternative module can supply 6 ethernet ports. All the ports in this module are on the same ELAN, the choice of ELAN is made at the vether modue level. All the ethernet ports are 10MB/s.
+I was told that the firmware running is FORE's ForeThought, so some of the commands are similar to [[config-asx200bx|ASX200BX Config and info]].
 The built in ethernet port uses LAN Emulation to bridge to atm, but seems unable to terminate an rfc1483 pvc. We used to use them as an access switch on the end of a 2MB/s G703 leased line, the ethernet port linked in to an ethernet switch, and the 25MB/s ports is used for a few pc's which need to connect to different networks.
@@ Line 23: / Line 25: @@
 The initial config of the switch is useless for our application, so the easiest thing is to delete it straight away. Unfortunately, unlike Cisco IOS there is no command line repeat, but the later firmware images have command completion and help at any point by typing a "?".
-Log in as the admin user, user=admin, password=vswitch. (Just type "admin" at the prompt. This will change to "ADMIN Access_NGI>").
+Log in as the admin user, user=admin, password=vswitch.
+(Just type "admin" at the prompt. This will change to "ADMIN Access_NGI>").
+<code>
+FVCcoreATM>admin
+Enter Password:*******
-Have a look at the system ports (really for interest only)
+ADMIN FVCcoreATM>
+ADMIN FVCcoreATM>set telnet passwd yourpassword
+Telnet password changed to: yourpassword
+</code>
+===== Initial view of system =====
+Have a look at the system modules installed and then the ports:-
+<code>
+ADMIN FVCcoreATM>show system
+crash    modules  ports    uptime   version
+ADMIN FVCcoreATM>show system modules
+Module       Revision   Description
+-----------------------------------
+           3      6 x ATM 25Mps module (SALI)
+           1      4 x E1 IMA Module (RJ-48)
+           1      2 x 155Mbps OC3 module (TI)
+                  Not Present
+           0      ETM management module (Strong ARM)
+                  Not Present
+                  Not Present
+                  Not Present
+                  Not Present
+                  Not Present
+Flash Card            slot 3 size 4M
+ADMIN FVCcoreATM>
+</code>
 <code>
@@ Line 49: / Line 84: @@
 </code>
+==== Config of global ATM parameters ====
 Delete the previous config and return to factory defaults
   "set system delflashcfg".
@@ Line 56: / Line 96: @@
 set the atm network prefix length.
-  "set pnni pglevel 96"
+<code>
+ADMIN FVCcoreATM>set pnni pglevel 96
+ADMIN FVCcoreATM>show pnni addrtable
+ADDR: 39826f3148000000000001000a00000000000000 LEN:   104 SCOPE:   0
+ADDR: 39826f3148000000000001002000000000000000 LEN:   104 SCOPE:  96
+ADDR: 39826f3148000000000001002000a0b1007cc200 LEN:   104 SCOPE:   0
+ADMIN FVCcoreATM>
+</code>
 Set the atm network prefix and switch number (Don't use my numbers, they have to match the existing atm numbering hierachy in use). Depending on your atm network mask (pglevel in FVC speak), your ilmi netprefix may be longer or shorter than this. The .05 at the end is the switch id.
@@ Line 67: / Line 117: @@
 This completes the basic global config.
+==== Interfaces ====
 Next start to configure some interfaces:-
@@ Line 77: / Line 129: @@
         "set e1 clocking 201 external"
-Scrambling is only required for e1 ports, not 155MB/s fibre ports.
+Scrambling is only required for e1 ports, not 155MB/s fibre ports. [[hdb3|HDB3 - High Density Bipolar Order 3 Encoding]]
 Please note, the scrambling is to ensure a zero dc average level, not for encryption, security etc....
 HDB3 is "High Density Bipolar 3zero substitution", an alternative to AMI etc. This has to match the line encoding being used by the circuit provider.
-Note also that the pnni implementation includes ilmi, so do NOT enable ilmi for the port. Pnni takes care of it.
+Note also that the PNNI implementation includes ILMI, so do NOT enable ILMI for the port. PNNI takes care of it.
 Next configure the ethernet port to use bridging and connect to ELAN name desired