While exploring Cisco Partner locator feature few days back, I
compiled a small list of Solution Providers (focusing Cisco Partners)
who are, in addition to other places, running their business in Karachi.
These companies offer varied services which include Network Management,
IT Infrastructure upgrade, Data Center Designs, contact centers,
Network Security, Telepresence and others.
I compiled
only the Titles and postal addresses of the companies. Their core
business and services can be seen from the respective websites. (Just
google the company title to get their website)
So here is the list:
DWP Technologies (Pvt.) Ltd. – Ground Floor, Nelson Chambers, I.I Chundrigar Road, Karachi
Plexus Technologies – 1st Floor, Bahria Complex III, M.T. Khan Road, Karachi – 74000
Access Group – First floor, Block F, Meharsons Estate Building, Talpur Road near I.I Chundrigur Road, Karachi–74000, Pakistan.
Future Technology – 311, Park Avenue, Shara-e-Faisal, Karachi – 75400
4sight Technologies – Suite # 2B, 45-C, 27th Street, Tauheed Commercial Area, DHA, Phase V, Ext
Corvit Networks – House No 18, Sasi Town Houses, Civil Lines, Abdullah Haroon Road, Near Marriot Hotel, Karachi, Pakistan
Arwen Tech – 37 G, Block 6, P.E.C.H.S, Karachi
Wateen Solutions – Dawood Center, 6th Floor, M.T Khan Road near PIDC, Karachi, 75300
Gulf
Business Machines – 5C-6C Prime Point Building, Mezzanine Floor, Main
Khayaban-e-Ittehad, Phase VII, Defense Housing Authority, Karachi,
Pakistan
Insiyabi Pakistan (Pvt) Ltd – 5th Floor, ILACO House Abdullah Haroon Road Karachi Pakistan
Premier Systems Pvt. Ltd. – 2nd Floor, Business Plaza, Mumtaz Hassan Road, off I.I. Chundigarh road Karachi-74000 Pakistan.
Innovative Integration – 5th Floor KDLB Buidling, 58 west wharf Road, Karachi, Pakistan
IBM Italia SPA – 1-2 Floors, Nice Trade Orbit Building, Plot # 44-A, Block 6, PECHS Sharah-e- Faisal Karachi
CNS Engineering – Banglow No# 19/G-1, P.E.C.H.S, Block 6, Shahra-e-Faisal Karachi
Infotech – 188-1-A-1/2, P.E.C.H.S II, Main Shahrah-e- Faisal, Karachi, Pakistan.
Jaffer Business Systems – Citi Tower, 33 – A, Block – 6, P.E.C.H.S, Shahrah-e-Faisal, Karachi – 75400
Seven IT Technologies – 172/P, 3rd Floor, PECHS Block-2, Tariq Road, Karachi. Pakistan.
Silicon Technologies – 77-E Block # 2 P.E.C.H.S, Ghazali Road, Karachi
Tech Access – 3rd Floor, Nacon House, 270/1, MD Wafai Street, Strachen Road, Karachi
Siemens – B-72, Estate Avenue, S.I.T.E, P.O. BOX 7158 Karachi
Systems Innovations – State Life Building 1-B, I.I Chundrigar Road, Karachi, 74000
COMMTEL – C-37, Block 4, Clifton Karachi, Pakistan
Arthur Lawrence – Suite 413, Business Avenue Building, PECHS, Block 6, Karachi, Pakistan
Ovex Technologies – Office # 203, 2nd Floor, Business Center, 19/1 – A, Block 6, P.E.C.H.S, Main Shahrah-e-Faisal, Karachi.
Huawei Technologies – Plot #23,Khayaban-e-Hafiz, Opp. Saudia Embassy, D.H.A Phase-V Karachi
Sysnet Pakistan – 79-B, Tipu Sultan Road, Karachi 75350
Innolytix Pakistan – 817 8th Floor Saima Trade Tower, I.I.Chundrigar Road, Karachi-Pakistan
Ericsson Pakistan – 44- Modern Cooperative Housing Society, Block 7/8, Tipu Sultan Road, Karachi
Rehmat
Taj Enterprises – Building # 63-C, Second Floor, 15th Commercial
Street, Defense Housing Authority Phase-II Extensions, Karachi
GCS Pvt. Ltd. – 43/16-D1, Block-6, PECHS Shahrah-e-Faisal, Karachi
Makkays – B-26, Block-15, Gulshan-e-Iqbal, Karachi – Pakistan
LACP Portchannel Configuration between Cisco VMware Interface
Use the link aggregation feature to aggregate one or more Ethernet interfaces to form a logical point-to-point link, known as a LAG, virtual link, or bundle. We would like to add LACP Ether channels to one of my 2960 switches to connect VMWare ESXi (vSphere 6.5) host’s via teamed NIC.
Does enabling Route based on IP hash without 802.ad aggregation or vise-versa disrupt networking?
Yes, if you must enable 802.ad Static mode ON and configure the vSwitch to route based on IP Hash, configure route based on IP hash inside ESX/ESXi first, then enable the LAG on the physical network. You will loose connectivity to the ESX/ESXi host temporarily until you configure the physical side.
How many Ether channels exist per vSwitch or vSphere Distributed Switch (vDS)?
One and only one Ether channel per vSwitch or vDS.
What is the difference between Active and Passive Mode for LACP configuration?
Active - The port will actively negotiate the link state by initiating negotiation and send LACP frames.
Passive - The port is passive state and will respond to LACP frames sent during LACP negotiation.
Does VMware support any other algorithm other than IP HASH when using Ether channel?
No, only route based on IP hash is supported when configuring based on Ether channel.
Can I configure standby or unused up-links while using IP Hash?
No. Do not configure standby or unused up-links with IP Hash. IEEE 802.3ad dynamic: Only supported in ESXi 5.1 vDS. Pior to ESXi 5.1 VMware only supported static link aggregation. With ESXi 5.1 Dynamic LACP is supported only vSphere Distributed Switches (vDS). Static LAG are still supported on vSwithes and vDS. Dynamic LACP provides additional support for Plug and Play automatic configuration and negotiation between host and physical switch. Dynamic LACP will detect link failures and cabling errors and automatically reconfigure the links.
Can I use beacon probing with IP Hash load balancing?
No. Beacon probing with IP Hash load balancing is not supported. Beacon probing is most useful in detecting networking failures which do not result in a link down condition. This could be a mis-configuration resulting in link that is still up, but not operating as expected.
Cisco and Huawei Port channel Configuration
Configuring a LACP link aggregation, EtherChannel or port-channel or Eth-trunk between Huawei and Cisco switch is something very common but the configuration syntax between the two vendors is different, it can be confusing.
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