H3C Technologies H3C S7500E Series Switches - Manual (Page 146)

8-12
Figure 8-4 Network diagram for RMON
Configuration procedure
# Configure the SNMP parameters. (Note that, parameter values configured on the agent must
be the same with the following configured on the NMS: suppose SNMPv3 is enabled on the
NMS, the user name is v3user, the IP address of the NMS is 1.1.1.2, authentication protocol is
MD5, authorization password is authkey, the privacy protocol is DES56, and the privacy
password is prikey.)
system-view
[Sysname] snmp-agent
[Sysname] snmp-agent sys-info version v3
[Sysname] snmp-agent group v3 v3group
[Sysname] snmp-agent usm-user v3 v3user v3group authentication-mode md5 authkey
privacy-mode des56 prikey
[Sysname] snmp-agent trap enable
[Sysname] snmp-agent target-host trap address udp-domain 1.1.1.2 params securityname
v3user v3
# Configure RMON to gather statistics on interface GigabitEthernet 2/0/1.
[Sysname] interface GigabitEthernet 2/0/1
[Sysname-GigabitEthernet2/0/1] rmon statistics 1 owner v3user
[Sysname-GigabitEthernet2/0/1] quit
# Configure RMON events: when event 1 is triggered, the device sends a trap to the NMS and
logs the event locally; when event 2 is triggered, the device logs the event locally.
[Sysname] rmon event 1 description rising log-trap v3user owner v3user
[Sysname] rmon event 2 description falling log owner v3user
# Create an RMON private alarm entry to monitor the utilization rate of interface
GigabitEthernet 2/0/1 when it is receiving packets, and the formula is [(number of received
bytes on the interface during the sampling interval × 8 + number of received packets on the
interface during the sampling interval × 16)/sampling interval]/interface rate.
[Sysname] rmon prialarm 1
(.1.3.6.1.2.1.16.1.1.1.4.1*8+.1.3.6.1.2.1.16.1.1.1.5.1*16)*100/(.1.3.6.1.2.1.2.2.1
.5.1*10) SpeedRatio 10 delta rising-threshold 80 1 falling-threshold 5 2 entrytype
forever owner v3user
The OID of node etherStatsOctets.1 is 1.1.3.6.1.2.1.16.1.1.1.4.1, which indicates the number of
bytes received on interface GigabitEthernet2/0/1; the OID of node etherStatsPkts.1 is
1.1.3.6.1.2.1.16.1.1.1.5.1, which indicates the number of packets received on interface
GigabitEthernet2/0/1; the OID of node ifSpeed.1 is 1.1.3.6.1.2.1.2.2.1.5.1, which indicates the
interface rate configured on GigabitEthernet2/0/1. Use delta sampling to obtain the total
number of received bytes on the interface during the sampling interval.