Changes between Version 14 and Version 15 of Internal/OpenFlow/Notes

Timestamp:

Aug 23, 2009, 12:46:25 AM (15 years ago)

Author:

akoshibe

Comment:

—

Internal/OpenFlow/Notes

@@ -245 +245 @@
 Whether it is NOX or the !Openflow Regression Suite it is all in lots of C. Trying to make Ruby work with C seemed a bit too messy for our own good, so we sent an email to the NOX developer's mailing list in hopes of some elucidation of how to create a Ruby interface to !OpenFlow, instead of Python (which is what NOX does, as described [http://noxrepo.org/wp/?page_id=2 here]) 
 
-=== Some giant lapse in time, with a pinch of SNMP (9/21) ===
+=== Some giant lapse in time, with a pinch of SNMP (8/21) ===
 So far:
  * have some Ruby code that interrogates and configures SNMP agents and retrieves OFP info. 
@@ -262 +262 @@
  * dot1q MIBs : http://en.community.dell.com/forums/p/19257012/19425860.aspx  
 
+=== The battle continues (8/22) ===
+The NEC MIB manual revealed that while traditionally read-write, dot1q family of OIDs are made non-writable for the IP8800.
+ * NEC's big refrence guide of MIBs (in Japanese) : http://www.nec.co.jp/ip88n/s36_sw/html/mibref/index.html
+  * 2.13.5 - qBridgeMIB (VLANs)
+So instead, using Telnet to change values in a gorier way
+ * Ruby Telnet : http://www.ruby-doc.org/stdlib/libdoc/net/telnet/rdoc/index.html 
+The following code bit creates a ruby telnet object, which essentially logs in and reconfigures port vlan assignments (I am particularily impressed/irked by the way I can now recall commands without even sitting in front of the CLI)
+
+{{{
+def set_port_vlan(port, vlan)
+        #sets port VLAN. For NEC switches whose port-vlans can't be set using dot1qPvid SNMP value.
+                sw = Net::Telnet::new("Host" => "172.16.100.10","Timeout"=> 10,"Prompt" => /[$%#>] \z/n)
+                sw.login("operator")
+                sw.cmd("enable")
+                sw.cmd("configure") { |c| print c }
+                sw.cmd("interface gigabitethernet"+" "+"#{port}") { |c| print c }
+                puts "changing port vlan value"
+                sw.cmd("switchport access vlan"+" "+"#{vlan}") { |c| print c }
+                #sleep(1)
+                sw.cmd("save")
+                sw.cmd("exit") {|c| print c}
+                sw.cmd("exit")  {|c| print c}
+                sw.cmd("exit")  {|c| print c}
+end
+}}}
+
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