HA in Cisco WLC

Unanswered Question
Jun 20th, 2010
User Badges:

Hi friends,


I am planning to have a wireless environment for a corporate company. I would like to have a Cisco wireless LAN controller 2100 series and 15 numbers of cisco aironet 1142 n access point. Since wireless is gonna be a very important medium for the premises, I am planning to have high availability for the 2100 series WLC.


With this scenario I am having the following of queries?


1. Does high availability is supported with WLC 2100 series or need to go for an hihger end WLC's? It would be great if I am guided with some documents on this?


2. My wired switching infrastructure at the core is running with GLBP. Can I connect the both WLC in each switch in an dual home architecture?


3. Is there any pre-requistes for doing the high availability for the WLc's?


4. Yet another company that is close to me do have the same architecture for wireless infrastructure, except that they have cisco WLC as 5508 and Cisco aironet 1142n access point. All the end points NIC adapters that they have support a/b/g standard. But with an n series they continously report low signal strength, the reason for this still unknown?

     But the tech documents of 'n' series access point claims that they support, 300Mbps within 33 feet and 200 Mbps within 66 feet.

They are having 2 nos of Cisco 1142n access point for every 30 feet but still they are facing low signal strength. Also there workspace are all cubicles and without any interference.

It would be great if I am guided on this issue also?



Regards,

Karthik Anbumani

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
abersven Sun, 06/20/2010 - 05:30
User Badges:

/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

Hi Karthik,


You can build this HA solution based on the 2100 controllers. And if you want HA for 15 access points you need two 2125 controllers. But I will suggest that you consider the 5508 controller since that is a more future proof hardware and will give you more features that you might want to use such as Office Extend.

Right now there is a bundle available for one 5508 with 10 x AIR-LAP1142 and the GPL price for that bundle is USD 31,424. And you should consider if you need the HA solution or if you are covered by the onsite support. In the product list below I have used the regulatory domain E and power cable for Europe. Make sure that you get this correct for your country. This is a limited offer ending August 1st 2010. You also need the additional 5 access points or more if you want Office Extend.

/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}


Also consider that the 2100 series only have FastEthernet interfaces so you will not be able to utilize the full 11n throughput.


1 x 5508 with 10 x 1142:



ProductDescriptionQuantityPriceLead Time
AIR-CT25-1140E10802.11a/g/n ESTI Cfg5508-25 10AP WCS Demo Promo ends 8/1/10124,595.0014 Days
AIR-CT5508-25-K9Z5508 Series Controller for up to 25 APs10.0014 Days
AIR-PWR-5500-ACCisco 5500 Series Wireless Controller Redundant Power Supply11,495.0014 Days
SWC5500K9-70Cisco Unified Wireless Controller SW Release 7.010.0014 Days
AIR-PWR-CORD-CEAIR Line Cord Central Europe10.0014 Days
AIR-LAP1142N-E-K9ZManufacturing Level PID - AIR-LAP1142N-E-K9100.0014 Days
S114RK9W-12421JACisco 1140 Series IOS WIRELESS LAN LWAPP RECOVERY100.00
LIC-CT5508-2525 AP Base license10.0014 Days
LIC-CT5508-BASEBase Software License10.0014 Days
WCS-CD-K9ZCD With Windows And Linux. No License.10.0014 Days
CON-OSP-CT25E10ONSITE 24X7X4 802.11a/g/n ESTI Cfg: 5508-25; 10APs;10.00
CON-OSP-CT0825ONSITE 24X7X4 Cisco 5508 Series12,944.00
CON-OSP-1142EK9ZONSITE 24X7X4 802.11a/g/n Fixed AP102,390.00
Total   LeadTime: 14 Days  Total Price: USD   31,424.00


Total LeadTime: 14 Days  Total Price: USD 31,424.00



2 x 2125 with 10 x 1142:


ProductDescriptionQuantityPriceLead Time
AIR-WLC2125-K92100 Series WLAN Controller for up to 25 Lightweight APs18,995.0021-35 Days
CAB-AC-C5-EURAC Power Cord, Type C5, Europe10.0014 Days
SWLC2100K9-70Cisco Unified Wireless Controller SW Release 7.010.0014 Days
ASA5505-PWR-ACASA 5505 AC Power Supply Adapter10.0014 Days
SSC-BLANKASA 5505 SSC Blank Slot Cover10.0014 Days
CON-OSP-AC2125K9ONSITE 24X7X4 WLAN Controller for for Retail11,656.00
Total   LeadTime: 21 - 35 Days   Total Price:   USD 10,651.00
ProductDescriptionQuantityPriceLead Time
AIR-WLC2125-K92100 Series WLAN Controller for up to 25 Lightweight APs18,995.0021-35 Days
CAB-AC-C5-EURAC Power Cord, Type C5, Europe10.0014 Days
SWLC2100K9-70Cisco Unified Wireless Controller SW Release 7.010.0014 Days
ASA5505-PWR-ACASA 5505 AC Power Supply Adapter10.0014 Days
SSC-BLANKASA 5505 SSC Blank Slot Cover10.0014 Days
CON-OSP-AC2125K9ONSITE 24X7X4 WLAN Controller for for Retail11,656.00
Total   LeadTime: 21 - 35 Days   Total Price:   USD 10,651.00
ProductDescriptionQuantityPriceLead Time
AIR-LAP1142-EK9-PRLAP1142 Controller Based E Reg Domain19,950.0014 Days
S114RK9W-12421JACisco 1140 Series IOS WIRELESS LAN LWAPP RECOVERY10.00
AIR-LAP1142-EBULKBOM LEVEL PID FOR BULK PACK100.0014 Days
CON-OSP-LAP1142EONSITE 24X7X4 802.11a/g/n Fixed Unified AP; ETSI102,390.00
CON-OSP-L1142E0PONSITE 24X7X4 802.11a/g/n LWAPP AP EU Cnfg-Promo Pk10.00
Total   LeadTime: 14 Days  Total Price: USD   12,340.00
 
 

Total LeadTime: 21 - 35 Days   Total Price: USD 33,542.00



Regards,

André

abersven Sun, 06/20/2010 - 05:59
User Badges:

4



/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

There are known issues with Intel 5100 and 5300 when it comes to 11n throughput. Use the recommended drivers. It’s not always that the newest driver is the best. In general you should use 13.x for 5100 and 5300 and 12.4.4.5 for Intel 4965.


/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} In order to get more than the default 144Mbps you need to enable channel bundling on the 5GHz radios.

Actions

This Discussion