Slow Applications Despite Frequent Bandwidth Upgrades?

Since you have neither control nor visibility over your WAN links subscribed from ISPs, you can never guarantee always-optimal network speeds. It is important to have visibility over every WAN link that has your traffic flowing through, so as to pin down performance bottlenecks. OpManager, by leveraging Cisco's powerful IP SLA technology, helps visualize WAN links providing hop-charts and reports on WAN link availability and latency at each traffic hop. You can spot outages & huge latency and then, in collaboration with your ISPs, quickly avoid costly degradation/downtime.

As simple an incident as a flawed configuration change or a minor bug in the router's IOS can result in drastic increase in memory, causing slow routing of traffic across your links. OpManager constantly monitors CPU utilization and memory status thus ensuring any such incidents are brought to light before causing bothersome network slowness. Monitoring router performance also helps in identifying over-stressed devices and facilitates management decisions on upgrades and capacity planning. OpManager's integration with ManageEngine Device Expert, also makes easy the administrator's network device management tasks. With DeviceExpert, you can check against recent configuration changes and revert to last known working settings if necessary.

To regulate traffic and to protect against security threats, administrators enforce rules on edge devices like firewalls. At times, the rules are made complex enough to delay traffic flow and eventually cause excessive resource utilization. OpManager observes utilization trends and allows one to set alerts for abnormal firewall health. OpManager also supports out-of-the-box monitoring of active VPN session counts thus allowing identification of burdened firewalls. To make decisions even more conclusive, OpManager integrates with ManageEngine Firewall Analyzer, enabling notifications on used vs unused rules to help qualify established firewall rules.

Interface errors and discards are commonly monitored parameters that provide insight into many end-user network complaints such as traffic loss. Apart from customizable threshold settings, OpManager has pre-configured thresholds for more than 200 supported interface types. Duplex mismatches are quickly detected before these can affect end-user applications, by setting up notification profiles for link errors and discards. OpManager also extends its network monitoring abilities, by integrating with ManageEngine NetFlow Analyzer., to drill down on traffic type so as to get in-depth visibility into bandwidth consumption.

A switch's backplane utilization lets you know how much of its maximum throughput is put to full use. Excessive backplane utilization on your switches can result in ports receiving too much of network traffic, further leading to slow applications and high packet loss and discards. It is important to monitor this parameter so as to determine how your switching infrastructure will scale to suit future needs. Using OpManager you can set a baseline value for backplane utilization and get alerted before your switch gets overloaded.