Monitoring interface aliases

[zpciph]

Hello,

I have several virtual interfaces that I want to monitor:

Code: Select all

# external interface
ext       Link encap:Ethernet  HWaddr z  
          inet addr:x.x.x.x  Bcast:x.x.x.x  Mask:255.255.255.252
# internal interfaces
int       Link encap:Ethernet  HWaddr z  
          inet addr:10.111.111.1  Bcast:10.111.111.255  Mask:255.255.255.0
--
int:0     Link encap:Ethernet  HWaddr z  
          inet addr:10.123.123.1  Bcast:10.123.123.255  Mask:255.255.255.0
--
int:1     Link encap:Ethernet  HWaddr z  
          inet addr:10.123.124.1  Bcast:10.123.124.255  Mask:255.255.255.0
--
int:2     Link encap:Ethernet  HWaddr z  
          inet addr:10.123.125.1  Bcast:10.123.125.255  Mask:255.255.255.0
...

Quite as expected, SNMP shows only physical interfaces:

Code: Select all

$ snmpwalk -v 1 -c something localhost .1.3.6.1.2.1.2.2.1.2 
IF-MIB::ifDescr.1 = STRING: lo
IF-MIB::ifDescr.2 = STRING: ext
IF-MIB::ifDescr.3 = STRING: int
IF-MIB::ifDescr.4 = STRING: sit0

Is it possible to force Cacti to display bandwidth usage based on IP subnets (that maps directly to virtual interface bandwidth usage)?

[gandalf]

Yes, by using the flowviewer plugin. You may find other plugins aiming at the same purpose. Or you may want to use ntop instead
Reinhard