Nityas World - Official Blog Of Nityanand Parab

In Da Projetcs

nityanandparab@yahoo.com (Nityanand) — Thu, 13 May 2010 07:19:33 GMT

These days I am pretty busy in my work schedule as two projects are going on and one is going to come in next few days.
The first consists of Cyberoam UTM 50i(Unified Threat Management) and Cyberoam DLP along with Windows AD and Storage server.My task is to configure Cyebroam Products.
The second one consists of agian Cyberoam UTM 1000i with Bluecoat Packetshaper.Packetshaper is a Bandwidh Management solution used to control the bandwidth for the users.

The sites for the products are http://cyberoam.com and http://bluecoat.com

The third project which is going to come is regarding a second bandwidth management solution from Allot. The product is Netenforcer.You can get more info on http://allot.com

View of Dabhol from river

nityanandparab@yahoo.com (Nityanand) — Wed, 28 Apr 2010 09:16:03 GMT

Here I am posting a photo of typical konkan village.It consists of coconut and beetel nut trees along the river side.

View my other articles in Konkan catgory

Cisco Physical Security Solution and Unified Communications

nityanandparab@yahoo.com (Nityanand) — Mon, 26 Apr 2010 10:53:12 GMT

Cisco Physical Security Solution and Unified Communications
Last week we were present at Cisco stall for demonstrating UC and Physical Security Solution of Cisco at the Command Conference.The event was for the army signals officers.

Cisco Physical Security products offer video-surveillance and access-control solutions that are easy to integrate with existing physical security infrastructure.

# Cisco Physical Access Control
# Cisco Video Surveillance IP Camera
# Cisco Hybrid Analog and Network Video Surveillance products
# Cisco Network-Centric Video Surveillance products

The more info can be found at below cisco link
http://www.cisco.com/web/solutions/ps/products.html

For Unified Communication we showcased Cisco MCS Media Convergence Server and Unity express products.
The phones we kept were Cisco 7965 and 7975
For MCS overview please visit this cisco page
http://www.cisco.com/en/US/products/hw/ ... index.html

Unity Express allows you to integrate your mailing solution so as if the call gets missed the caller can send it as Voicemail.
Please visit the URL for UNity express overview
http://www.cisco.com/en/US/products/sw/ ... index.html

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OSPF Notes Part 5

nityanandparab@yahoo.com (Nityanand) — Sat, 24 Apr 2010 12:16:02 GMT

OSPF Notes Part 5

OSPF Network Topology Options
OSPF assumes a subnet is broadcast-capable by default.
OSPF Network Types
Broadcast multiaccess
Point-to-point
Point-to-multipoint broadcast
Point-to-multipoint nonbroadcast
Nonbroadcast multiaccess (NBMA)

NBMA and point-to-multipoint are standards-compliant (RFC 2328), whereas point-to-multipoint
nonbroadcast, broadcast, and point-to-point implementations are Cisco proprietary.
NBMA networks utilize DRs like broadcast networks, however neighbors must be manually defined instead of being automatically discovered.

Find here the table of OSPF Network types

Source

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OSPF Notes Part 4

nityanandparab@yahoo.com (Nityanand) — Sat, 24 Apr 2010 12:04:18 GMT

OSPF Notes Part 4

OSPF cost can be manually specified per interface:
Router(config-if)#ip ospf cost

An alternative to defining static costs per interface is to change the numerator bandwidth (default 100Mbps):
Router(config-router)ospf auto-cost reference-bandwidth

Reference speed is a 32-bit value (1 - 4294967). If reference speed is modified, the same modification should be performed on all routers within the area.

Router Priority
Default DR election priority is 1, and a router with a priority of 0 will not become a DR. Priority range is 0 - 255.

Router(config-if)#ip opsf priority

Verifying OSPF Configuration
show ip ospf - OSPF process details

show ip ospf database - Contents of the topology database

show ip ospf interface - Interfaces participating in OSPF

show ip ospf neighbor - Neighbor information

show ip protocols - Displays all active routing protocols

show ip route

debug ip ospf events

debug ip packet

Source

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OSPF Notes Part 3

nityanandparab@yahoo.com (Nityanand) — Tue, 20 Apr 2010 11:21:30 GMT

OSPF Notes Part 3

Packet Types
OSPF is IP protocol 89.
Hello - Used to establish communication with directly connected neighbors
Database Descriptor (DBD) - Lists router IDs from which the router has an LSA and its
current sequence number
Link State Request (LSR) - Request for an LSA
Link State Update (LSU) - Reply to an LSR with the requested information
Link State Acknowledgment (LSAck) - Used to confirm receipt of link-state information

Packet Fields
Version - Version of OSPF being run
Type
Length
Router ID
Area ID
Checksum
Authentication type (none/plaintext/md5)
Authentication data
Data

Configuring OSPF in a Single Area
Necessary information:
OSPF process ID (locally significant)
Participating interfaces
Area ID
Router ID

Enable OSPF
Router(config-router)# router ospf

Configure Included Networks
Router(config-router)# network area

A single interface can be specified by supplying its IP address and a null wildcard mask: network
192.168.0.1 0.0.0.0 area 0

Router ID
If no router ID has been administratively declared, a router will choose the highest loopback IP address.
If no loopback addresses are present, the highest IP address of the first active interface will be used.

A router ID can be manually specified:
Router(config-router)# router-id

Best practice dictates the creation of a loopback address to be used as the router ID for stability and continuity:
Router(config)# interface loopback 0
Router(config-if)# ip address

Default Cost
Link cost is a 16-bit value (0-65535); default cost is calculated as 100Mbps/interface bandwidth.(Interfaces 100Mbps and faster are assigned a cost of 1.)

Source

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