Ahmed Abdulla

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Ahmed Abdulla last won the day on February 21 2013

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About Ahmed Abdulla

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  1. Dear chrcel Thanks for your replay ...... I really just need to arrange them based on vendor reputation ...... I will not implement QOS ...... Also based on performance (for example, under proccessing load, extreme temp. conditions, etc ....) Thanks in advance
  2. Dear Friends I wish u r all in very good health ..... I want to take your opinion about something .. My company will buy access switches .... I want to know how to arrange the following products from the best to the worest and if i want to give them marks from 100 , Can you help me ???? I want to arrange them based on the performance, stability & for sure vendor reputation The products are: 1)Cisco: ========>WS-C2960-24PC-L 2)HP ========>HP E2610-24-PoE 3)Alcatel ========>OmniStack 6224P ========>Omniswitch 6850-24 Thanks in advance
  3. Dear Friends I wish u r fine ...... I am confused about something and i want a help from u ..... I will buy 2 APs AP-60 that i want to use them in (point-to-point)PTP mode(The scienario is i have 2 buildings and i want to connect them using 2 access points in PTP mode) My question is: Can the access point AP-60 works as indoor AP (serve client and permit client assossiation to it) while working in PTP mode with the other access point ??? Thanks in advance
  4. Dear Friends I wish u r all in very good health ..... I want to take your opinion about something .. My company will buy wireless APs .... I want to know how to arrange the following products from the best to the worest and if i want to give them marks from 100 , can you help me ??? The products are: 1)Cisco: ========>Access Points (AIR-AP1252G-E-K9 & AIR-AP1142N-E-K9) 2)HP ========>Access Points (HP ProCurve MSM410 WW) 3)Aruba ========>Access Points (AP-121) ========>Controller (200-6-AOS-STD) 4)D-Link ========>Access Points (DAP-2590/EEU & DAP-3520) 5)LinkSys ========>Access Points ( WAP4410N-G5 & WAP4400N & WAP200E-EU) Thanks in advance
  5. Dear Friends I wish u r all in very good health ..... I want to take your opinion about something .. My company will buy wireless APs with its Controller .... I want to know how to arrange the following products from the best to the worest and if i want to give them marks from 100 , can you help me ??? The products are: 1)Motorla: ========>Access Points (AP300 & AP5181 & 5700AP) ========>Controller (WS2000) 2)HP ========>Access Points (HP ProCurve MSM422 & ProCurve MSM 320-R) ========>Controller (HP procurve MSM750 & HP procurve MSM730) 3)Aruba ========>Access Points (AP-121 & AP-120 & AP 60) ========>Controller (3400 -32- AOS-STD) 3)D-Link ========>Access Points (Dlink Dwl-3200AP & Dlink Dwl-3140AP & Dlink DWL-7700AP) ========>Controller (DWS-3024L & DSA-3600) Thanks in advance
  6. Dear Friends I wish u r all fine .... I have question about AutoQos and wish u could help me.... I read this statement in cisco curriculum : "Before using the auto discovery qos command at the interface or ATM PVC, ensure you meet these prerequisites : If the interface or subinterface has a link speed of 768 kbps or lower, configure the primary or secondary IP address of the interface by using the ip address command. " My question is why only it is a prerequisite to configure ip address on low speed interfaces and not on all interfaces that involved in AutoQOS ??? Can anyone help ???? Thanks in advance ........
  7. Dear friends I wish u r all in very good health ..... I have a question about SDM ....... I have configured QOS using SDM with the default options ...... then i go to router and view running configuration ..... i notice the following:- 1)Their are 2 class-maps for video (SDMSVideo & SDMIVideo) 2)The 2 video classes have no policy assigned to them Although i don't have any routing protocol or VOIP configured on my router, but the class of routing and voice have policies applied to them Can anyone explian why video classes have no policy for them while other some classes have ??? Thanks in advance
  8. Dear Friends I wish u r fine ....... I wish u could help me understanding some topics in STP Security .... 1)I read this statement is Cisco Material "Loop guard is incompatible with root guard. Also, loop guard should not be enabled on PortFast ports" ..... Why ??? 2)Does unidirectional links caused by cable problems (utp problem , fiber problem , ....) or due to failure in the port (Hardware failue) or due to both ????? 3)On an EtherChannel bundle, UDLD disables individual failed links but the channel itself remains functional if other links are available while Loop guard puts the entire channel in loop-inconsistent state if BPDUs are not received across the EtherChannel .... why ????? I wish u could help me understanding these items Thanks in advance Bye