The good news is that many specializations of safety, where to choose the bad news is that many choices! When the decision of the specialization, take some time for certification, the benefits for you in your current position or in your “dreams”.

One of the most popular Security Associate certification is the Cisco VPN Specialist certification. This dual consideration of the runway from a backup Cisco Network Devices (SND, 642-551) and a Cisco Secure Virtual Private Networks (CSVPN, 642-511) exam. How to Earn Cisco VPN Specialist exam, you must provide proof of CCNA certification.

What should I expect these tests? SND on the review, expected that grilled on basic security features on both switches and routers and VPN 3000 Concentrator, PIXes and IDS / IPS sensors. They must be prepared to set up and solve the problems of basic configurations AAA, Access lists and syslog, Secure car, and more. They should also strong with IPSec.

IPSec is also part of your CSVPN review. How do you expect, you also expect that very well with the Cisco VPN 3000 Concentrator Series, including browser configuration, users and groups Windows VPN client software and more.

This may be a certification is an excellent addition to your CV and your skills. For the latest information on this certification Cisco and others, you must regularly Learning & Events section of the Cisco website. As candidates for the Cisco certification, it is your responsibility, stay course additions and changes to Cisco certification means – and what is good for your career!

One would think that if you have two physical links between the two windows, two times more data to another, as if it were a single connection. STP does not, but to prevent the loop switching, one of the channels are blocked.

SW1 and SW2, two types of physical connections, ports and fast0/11 fast 0 / 12, we see here on SW1 on port 0 / 11 is the traffic. Another STP port in blocking mode (BLK).

SW1 # show vlan 10

(Treatment of clarity over some)

STS interface type cost Prio.Nbr

Fa0/11 Root FWD 19 128.11 P2P

Fa0/12 ALTNER P2P BLK 19 128.12

While STP is helping us change the loops, STP is also hurting us to use a path very valid between SW1 and SW2. We can literally double the bandwidth between two switches, when we are in this direction, which is currently blocked.

The secret of using the EtherChannel configuration currently blocked path. An EtherChannel is simply a logical concentration of 2 to 8, the physical connection between two Cisco switches.

Configuring an EtherChannel is very simple. Use the 1-channel mode on each port, you EtherChannel. Of course, this must be on both switches, if you configure an EtherChannel on a button and not to do so, and the ports on the other side to change the protocol, and to remain there.

The beauty is that the STP EtherChannel EtherChannel marriage. If all the physical connections within the EtherChannel do not go see STP and STP not new. While movement between the two systems seems to have slowed, the delay in transmission by a recalculation of the STP avoid. An EtherChannel, we also offer the possibility of multiple physical links at a time.

Proceed as follows for these ports to an EtherChannel:

SW1 # conf t

Type the commands, one per line. The end of the CNTL / Z.

SW1 (config) # interface fast 0 / 11

SW1 (config-if) # channel-mode-1

Creating a port-channel interface port-channel 1

SW1 (config-if) # interface fast 0 / 12

SW1 (config-if) # channel-mode-1

SW2 # conf t

Type the commands, one per line. The end of the CNTL / Z.

SW2 (config) # int fast 0 / 11

SW2 (config-if) # channel-mode-1

SW2 (config-if) # int fast 0 / 12

SW2 (config-if) # channel-mode-1

The “Show interface root” and “Show-VLAN Spanning Tree-10″ are used to configure EtherChannel.

SW2 # show interface root (writing for some clarity)

Port Mode Encapsulation Status Native vlan

PO1 desirable 802.1q trunking 1

SW2 # show vlan 10 (publishing more, for some clarity)

STS interface type cost Prio.Nbr

PO1 LDes P2P FWD 12 128.65

Before contacting EtherChannel here, we saw individual ports. Now we see “PO1″, which is the interface salon1. “This is the logic of the interface created, if an EtherChannel is. We are now with the two physical paths between two switches in time!

It is a great advantage in the undertaking, more than one. Normally, when the only way to open Trunking between two windows, there is a delay, while another way is open – close to a minute, in some situations. We will now de-Port 0 / 11 SW2 and the impact on the EtherChannel.

SW2 # conf t

Type the commands, one per line. The end of the CNTL / Z.

SW2 (config) # int fast 0 / 11

SW2 (config-if) # shutdown

3w0d:% LINK-5-CHANGED: Interface FastEthernet0/11, changed
National management definition

SW2 # vlan, more than 10

VLAN0010

Spanning Tree Protocol enabled ieee

STS interface type cost Prio.Nbr

PO1 LDes P2P FWD 19 128.65

SW2 # show interface root

Port Mode Encapsulation Status Native vlan

PO1 desirable 802.1q trunking 1

The EtherChannel not go! STP EtherChannel see it as a single link, where STP is, nothing happens.

The creation of an EtherChannel and how can your network is an essential skill for CCNA and CCNP success, and it is very useful for the work that good. Make sure you are comfortable with the construction of a Cisco exams!

A +

A + certification shows knowledge and understanding of computer hardware and operating systems. It is first in line for the characterization of a computer technician, even though many companies use the A + certification training for their employees to acquire basic knowledge of hardware and operating systems.

The certification includes the actual test material A + and A + Operating System Technologies control focuses only on Microsoft operating systems. A review of A + for computer professionals, one year of practical experience.

Network +

Network + certification for network technicians to test and watch, skill and understanding of network hardware, installation and troubleshooting in general. Network + certification is not specific manufacturer. In addition to the Network + certification, network technicians from other vendors specific certification, such as Microsoft and Cisco certifications Certifications.

Server +

CompTIA Server + certification demonstrate the power of server hardware and operating systems capabilities. A + / Server + certification focuses on the general knowledge on different servers, while Microsoft Certified Systems Administrator (MCSA) certification course, the test of knowledge of Microsoft products – NT Server, SQL Server or d ‘ information for publication on the Web.

Security +

Security + certification focuses on security aspects of information technology such as computer security and network security.

Linux +

Since the operating system open source benefits of the wide acceptance and popularity, CompTIA Linux + Certification offers. Unlike other CompTIA certifications, which covers the general understanding of the topic, not all suppliers of products. Linux + is a specific product, but do not produce specific, because the nature of open source software. The certification covers the installation, management, configuration, security, documentation and equipment Lunix.

The best-known certification CompTIA A + certification for hardware and operating system. Many organizations simply use A + training for computer training. Some lesser-known certifications CompTIA HTI + (Home Technology Integrator includes installation, integration and automation of the home sub-systems troubleshooting, e-Biz + certification, the basis of e -commerce, CTT + certification training to professionals, CDIA + certification and documents – Management and Enterprise Content Management.

One of the main differences between OSPF and ISIS is for you if you have for the first time, your BSCI exam studies, and this is the terminology. ISIS uses terms that has no protocol, she studied to date, and learning of these new conditions is the first step to BSCI CCNP and verification success.

First, what “is” are “ISIS”? It is for “Intermediate System”, which sounds like a group of routers. Unlike systems, which are logical groupings of routers, an intermediate system, a single router. That’s it.

They are also late to the ISIS system of “ES”. The end is simply an end to the host.

ISIS and OSPF both use the concept of territories, but ISIS is another approach to this concept. ISIS router three types of routing levels, according to the region was a router in router level 2 are for the backbone and serve as a transit country between the device non-backbone area. Level 1 router are not entirely in one area of the backbone.

ISIS uses two Level 1 and Level 2 hellos, which means that the two mentioned types of routers can not just close. Fortunately for us, there is a middle way, which is level 1-2 router. This router is not the backbone area backbone areas. L1-L2-router holding two routing tables, one for L1 routing and another for L2 routing. This is the default for a Cisco router, and L1-L2 routers can-adjacencies with L1 and L2 routers.

Part of the challenge of the ISIS study is used to the differences between ISIS and OSPF. Do you think the study of terminology, is a master at a time, and soon you are a master of the ISIS and CCNP boot!