cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1332
Views
0
Helpful
9
Replies

Why we nned to turn off PAgP on user access ports to avoid startup delays

mahesh18
Level 6
Level 6

Hi all,

I was reading that if users have Workstation Startup Connectivity Delays

we should do PAgP off in user switch side.Is that true?

9 Replies 9

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Mahesh,

it can help to save the time of PAGP negotiation at link change state to up

Hope to help

Giuseppe

Hi qiuslar,

thanks for reply can u explai me in more detail what u said please?

thanks

mahesh

If you have "workstation startup delays", I'm assuming that you mean you are having a hard time getting dhcp addresses in time? You disable spanning-tree on the port. PAgP is for etherchannel.

int fa0/1

descript workstation 1

spanning-tree portfast

Make sure that you only have a workstation connected to that port because if you have a hub, switch, router, access point, you can cause a loop. End hosts are fine.

HTH,

John

HTH, John *** Please rate all useful posts ***

Hi blakley,

User tole me that he is having issues when Pc boots up and it takes a while when he sees the message applying network settings

here is user port config

oktulf26s1> (enable) sh port spantree 2/36

Port(s) Vlan Port-State Cost Prio Portfast Channel_id

------------------------ ---- ------------- --------- ---- -------- ----------

2/36 260 forwarding 3100 32 enabled 0

Port fast is enabled on switch port also speed is 100 full hardcoded on switch port and user NIC.

Normally just using portfast is enough . If you want to turn on portfast and turn off channeling and trunking in one command just use the following command on "user" ports , "switchport host" .

hi glen

thanks for reply

it is CATOS

her eis config for Mod 2

#module 2 : 48-port 10/100BaseTx Ethernet

set vlan 260 2/1-26,2/28-44

set vlan 261 2/45-48

set vlan 992 2/27

set port disable 2/1-7

set port speed 2/25,2/29-30,2/33,2/37,2/42,2/44 10

set port speed 2/1,2/3,2/5-8,2/11-14,2/16-17,2/20-21,2/23-24,2/26-28,2/35-36,2/38-39,2/41,2/43,2/45-48 100

set port duplex 2/1,2/3,2/5-8,2/11-14,2/16-17,2/20-21,2/23-24,2/26-28,2/35-36,2/38-39,2/41,2/43,2/45-48 full

set port trap 2/1-48 enable

set port name 2/1 bad or faulty

set port name 2/2 bad or faulty

set port name 2/3 bad or faulty

set port name 2/4 bad or faulty

set port name 2/5 bad or faulty

set port name 2/6 bad or faulty

set port name 2/7 bad or faulty

set port name 2/8 bad or faulty

set port name 2/9 2758

set port name 2/10 2754

set port name 2/15 2793

set port name 2/18 Exec Con Room 2906

set port name 2/19 2764

set port name 2/20 2896

set port name 2/21 2752

set port name 2/22 2750

set port name 2/23 2748

set port name 2/24 2746

set port name 2/26 VC-29

set port name 2/27 2607

set port name 2/28 2659

set port name 2/30 2873

set port name 2/31 21B_Exec Conf Room

set port name 2/32 2840

set port name 2/33 2611

set port name 2/34 2853

set port name 2/35 2627

set port name 2/38 2603

set port name 2/39 V415

set port name 2/40 2888-HR Conference

set port name 2/41 2625

set port name 2/43 2617

set port name 2/45 Wireless

set port name 2/46 Wireless

set port name 2/47 Wireless

set port name 2/48 Wireless

set trunk 2/2 off dot1q 1-1005

set trunk 2/5 off dot1q 1-1005

set trunk 2/6 off dot1q 1-1005

set trunk 2/18 off dot1q 1-1005

set trunk 2/22 off dot1q 1-1005

set trunk 2/31 off dot1q 1-1005

set trunk 2/32 off dot1q 1-1005

set trunk 2/45 on dot1q 1-1005

set trunk 2/46 on dot1q 1-1005

set trunk 2/47 on dot1q 1-1005

set trunk 2/48 on dot1q 1-1005

set spantree portfast 2/1-44 enable

set spantree portcost 2/1,2/5-7,2/9,2/13,2/19-24,2/26-28,2/35-36,2/38-39,2/41,2/43,2/45-48 3100

set spantree portvlancost 2/1 cost 3099

set spantree portvlancost 2/5 cost 3099

set spantree portvlancost 2/6 cost 3099

set spantree portvlancost 2/7 cost 3099

set spantree portvlancost 2/9 cost 3099

set spantree portvlancost 2/13 cost 3099

set spantree portvlancost 2/19 cost 3099

set spantree portvlancost 2/20 cost 3099

set spantree portvlancost 2/21 cost 3099

set spantree portvlancost 2/22 cost 3099

set spantree portvlancost 2/23 cost 3099

set spantree portvlancost 2/24 cost 3099

set spantree portvlancost 2/26 cost 3099

set spantree portvlancost 2/27 cost 3099

set spantree portvlancost 2/28 cost 3099

set spantree portvlancost 2/35 cost 3099

set spantree portvlancost 2/36 cost 3099

set spantree portvlancost 2/38 cost 3099

set spantree portvlancost 2/39 cost 3099

set spantree portvlancost 2/41 cost 3099

set spantree portvlancost 2/43 cost 3099

set spantree portvlancost 2/45 cost 3099

set spantree portvlancost 2/46 cost 3099

set spantree portvlancost 2/47 cost 3099

set spantree portvlancost 2/48 cost 3099

set port channel 2/2,2/5-6,2/18,2/22,2/31-32 mode off

end

let me know which commands i can user here to turn off trunking and ether channel?

Mahesh,

With the "error" that you're describing, this can also be a problem with the workstation itself. Sometimes disjoining/rejoining the domain fixes the problem. If you can, I would move the user to another switchport to see if it follows the computer. If it doesn't, then the problem is the switchport. If it does, then it's a workstation problem.

HTH,

John

HTH, John *** Please rate all useful posts ***

Hi,

user connected to other floor he has no issues.

i check switchport no errors are there.

port fast is enabled.

For catos it would be "set port host slot/port" . Don't see anything out of place in the config you showed.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: