Monitoring your website by Google Alerts
Tweet If you see incoming traffic is certainly dropped, you need to review whether the site got hacked or not. If you are not savvy…
What is UDLD protocol ?
Tweet In order to detect the unidirectional links before the forwarding loop is created, Cisco designed and implemented the UDLD protocol. UDLD is a Layer…
How to calculate full mesh WAN links
There are three different type of network topologies. 1. Hub-and-spoke 2. Full mesh 3. Hybrid How to calculate WAN links? Here is how…
Link State Routing Protocols Drawback
Tweet Link State routing protocols, such as OSPF and IS-IS, converge more quickly than their distance vector routing protocols such as RIPv1, RIPv2, EIGRP and…
What Route Reflectors does ?
Tweet Within any BGP autonomous system, every IBGP speaker must have a fully meshed peering arrangement with every other iBGP speaker. This is due to…
Light level of fiber cable for 1000BASE-LX/LH
Tweet Here is light level information for single mode fiber for Gigabit Ethernet port. Most of cases, it doesn’t matter of how many port or…
[Enterasys] Port Mirroring Sample Configuration
Tweet source port 1/13 destinaion port 1/10 Console(Config)#interface Ethernet 1/1 Console(Config-if)#port monitor Ethernet 1/4 Console(Config-if)#
What is CNSP and PNSP ?
Tweet PSNP(Partial Sequence Number PDU) are used to acknowledge the receipt or to request the retransmission of the latest version of an LSP while the…
Protocols ISIS VS. OSPF
Tweet L2 routers are similar to OSPF backbone routers, and the set of L2 routers (including L1/L2 routers) and their interconnecting links make up the…
EIGRP metric is calculation
Tweet By default, EIGRP uses only bandwidth and Delay when calculating the metric. EIGRP uses these scaled values to determine the total metric to the…
Calculate a website’s value ?
Tweet Have you ever thought about your website value? There are sites out there interent. One I found today iscalled $stimator.com. Not sure it is…
EtherChannel configure mode with PAgP
Tweet PAgP facilitates the automatic creation of EtherChannel links by exchanging packets between channel-capable ports. The protocol learns the capabilities of port groups dynamically and…
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