M o n i t o r i n g J u n i p e r E X S w i t c h
1
Monitoring Juniper EX Switch
Juniper EX Series Ethernet switches deliver access, aggregation, and core layer switching services in branch, campus,
and data center networks to ensure fast, secure, reliable delivery of data and applications.
All EX Series Ethernet Switches address escalating demands for high availability, unified communications, mobility
and virtualization within enterprise networks. The EX Series switches increase competitiveness and contribute to
business success by delivering operational efficiency, business continuity, and network agility for end-to-end
enterprise environments.
If this switch, which assures service operators of continuous network connectivity and secure transaction of business,
starts malfunctioning suddenly, the connection to mission-critical services will be lost, thereby causing irreparable
damage to reputation and revenue. It is therefore imperative that the operations of the Juniper Ex Switch are
monitored 24 x 7.
eG Enterprise provides a specialized
Juniper EX Switch
monitoring model (see Figure 1), which periodically polls the
SNMP MIB of the switch to measure the CPU usage, temperature and memory of each hardware component of the
switch and notifies administrators of potential resource crunches and failures of the power supply, fans etc.
Figure 1: The layer model of the Juniper EX Switch
Using the metrics reported , administrators can find quick and accurate answers for the following performance
questions:
Is the CPU utilization of each hardware component optimal? If not, which hardware component is utilizing
the emaximum CPU?
Which hardware component is consuming the maximum memory resources? Is the buffer memory and heap
memory allocated to each hardware component utilized effectively?
Is the temperature maintained optimally for all the hardware components of the Juniper EX Switch?
Is any VPN tunnel hogging the bandwidth resources? If so, which one is it?
Are too many fragmented packets flowing through the firewall? If so, why? Is it because of an incorrect
configuration?
What is the mode of the routing engine available in the Juniper EX Switch?
The
Network
layer of the
Juniper EX Switch
model is similar to that of a
Windows Generic
server model. Since these
tests have been dealt with in the
Monitoring Unix and Windows Servers
document, Section 1.1 focuses on the
Operating System
layer.