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ERS4550T using LLDP to modify VLAN on 9608 taking forever

ERS4550T using LLDP to modify VLAN on 9608 taking forever

(OP)

I have a customer that does not have a DHCP server, so I am using LLDP in the ERS4550T to modify the VLAN-ID on their 9608s. Once the VLAN has been modified I am using the IPO V2 as a DHCP server for the phones only. Everything is working as expected, with one exception. When the 9608 boots it takes 26sec to switch to the Voice VLAN. Once it does it gets an IP from the V2, downloads, and waits to be logged in. I was hacking my way through this on a switch that I had laying around the office a few days ago and I remember it only taking 3-4sec. Unfortunately I restored that switch and put it away, AND didn't save a config (I thought I did). Any ideas as to what is causing a 26sec delay. I do realize that 26sec is not quite forever, but it sure seems that way when you are watching it.

Thanks,
E

RE: ERS4550T using LLDP to modify VLAN on 9608 taking forever

On your interface:
spanning-tree rstp edge-port true

RE: ERS4550T using LLDP to modify VLAN on 9608 taking forever

(OP)
OK. Here's my config. I added the two spanning tree rstp statements to an existing config. When I plug a phone in I am still waiting 30sec for the VLAN to switch. Can you see anything I am missing?

4550T-PWR#show run
! Embedded ASCII Configuration Generator Script
! Model = Ethernet Routing Switch 4550T-PWR
! Software version = v5.6.6.017
!
! Displaying only parameters different to default
!================================================
enable
configure terminal
! *** CORE (Phase 1) ***
telnet-access logging all
cli password serial local
cli password telnet local
! username "ro" "********" ro
! username "admin" "********" rw
tftp-server 10.34.120.123
! *** SNMP ***
snmp-server enable
! *** IP ***
ip address stack 0.0.0.0
ip address switch 10.34.94.1
! *** IP Manager ***
! *** ASSET ID ***
! *** EAP ***
! *** IPFIX ***
! *** System Logging ***
! *** STACK ***
! *** Custom Banner ***
banner custom
banner 1 "Carbone_Hyundai_Commercial_Dr"
! *** SSH ***
! *** SSL ***
! *** SSHC ***
! *** RSTP (Phase 1) ***
!The Spanning tree operation mode cannot be changed without rebooting.
!The Spanning tree operation mode is required to be set to RSTP before
!loading this ASCII configuration file.
spanning-tree mode rstp
! *** VLAN ***
vlan create 2 type port
vlan create 3 type port voice-vlan
vlan name 1 "MPLS"
vlan name 2 "DATA"
vlan name 3 "VOICE"
vlan ports ALL tagging unTagPvidOnly
vlan configcontrol flexible
vlan members 1 48
vlan members 2 1-46
vlan members 3 1-47
vlan ports 1-46 pvid 2
vlan ports 47 pvid 3
no auto-pvid
! *** IGMP ***
! *** EAP Guest VLAN ***
! *** EAP Fail Open VLAN ***
! *** EAP Voip VLAN ***
! *** Port Mirroring ***
! *** 802.1ab ***
! *** 802.1ab vendor-specific Avaya TLVs config ***
lldp vendor-specific avaya call-server 1 10.10.10.10
lldp vendor-specific avaya file-server 1 10.10.10.10
interface FastEthernet ALL
lldp port ALL vendor-specific avaya dot1q-framing tagged
exit
! *** 802.1AB MED Voice Network Policies ***
interface FastEthernet ALL
lldp med-network-policies port ALL voice dscp 46 priority 6 tagging tagged vlan
-id 3
lldp med-network-policies port 1-47 voice-signaling dscp 34 priority 6 tagging
tagged vlan-id 3
exit
! *** QOS ***
qos if-group name qosTrustedIfcs class trusted
qos if-assign port ALL name qosTrustedIfcs
! *** RMON ***
! *** Interface ***
interface FastEthernet ALL
name port 47 "IP_Office"
name port 48 "NRD_MPLS"
exit
! *** Rate-Limit ***
! *** MLT (Phase 1) ***
! *** MAC-Based Security ***
! *** LACP ***
! *** ADAC ***
! *** RSTP (Phase 2) ***
interface FastEthernet ALL
spanning-tree rstp port 49-50 learning disable
spanning-tree rstp port 1-46 edge-port true
exit
! *** VLAN Phase 2***
!vlan mgmt 2
! *** MLT (Phase 2) ***
! *** CORE (Phase 2) ***
! *** PoE ***
! *** RTC ***
! *** Avaya Energy Saver ***
! *** AUR ***
! *** AAUR ***
! *** L3 ***
ip routing
interface vlan 1
ip address 10.35.124.26 255.255.255.252 2
exit
interface vlan 3
ip address 10.10.10.1 255.255.255.0 3
exit! --- ECMP ---
! No license for ECMP.
! Contact support@avaya.com to update Software license.
ip route 0.0.0.0 0.0.0.0 10.35.124.25 1
! *** IPV6 ***
! *** NSNA ***
! *** VLACP ***
! *** Brouter Port ***
! *** DHCP Relay ***
! *** L3 Protocols ***
! --- IP Directed Broadcast ---
! --- Proxy ARP ---
! --- UDP Broadcast Forwarding ---
! --- VRRP ---
! --- Route Policies ---
! --- OSPF ---
router ospf
router-id 197.128.4.0
exit
! --- RIP ---
! *** DHCP SNOOPING ***
! *** ARP INSPECTION ***
! *** IP SOURCE GUARD ***
! *** STACK MONITOR ***
! *** SLPP-guard ***
! *** SLAMON ***
application
exit
4550T-PWR#

RE: ERS4550T using LLDP to modify VLAN on 9608 taking forever

Set the logging to informational or debug and try again, then view the log and look at the timing of the log events relating to the port you are testing.
If the port isn't coming up in about 2 seconds, then reboot the switch.

What IP address exactly is the phone getting, eventually?
How do the phones get their Voice VLAN?
Why do they have a routed interface in VLAN3 but none in VLAN2?
I'm guessing there is a router p[atched to this switch, on VLAN2?

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