Michael McNamara

technology, networking, virtualization and IP telephony

Nortel ERS 5520 PwR Switch (Part 2)

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[ad name=”ad-articlebodysq”]In my previous post I outlined all the commands that you would need to configure a Nortel Ethernet Routing Switch 5520 to support deploying Nortel’s i2002/i2004 Internet Telephones using LLDP-MED in conjunction with ADAC (Automatic Detection and Automatic Configuration). If you followed the steps your probably well on your way to getting things work. Unfortunately things can sometimes go wrong even with the best documentation and understanding of the product.

In this post I’m going to outline some of the basic commands you can use to troubleshoot any issues you might have between the ERS5520 and the i2002/i2004 phones.

Q. How can I check the log file?
A. show logging

ERS-5520# show logging
Type Time                    Idx  Src Message
---- ----------------------- ---- --- -------
S    00:00:00:00             1    NVR SNTP: Could not sync to NTP servers.
S    2007-04-05 17:18:08 GMT 2    NVR SNTP: Could not sync to NTP servers.
S    2007-04-05 17:22:07 GMT 3    NVR Audit data initialized - incorrect magic number: 0xffffffff
I    2007-04-19 01:21:03 GMT 4        Web server starts service on port 80.
I    2007-04-19 01:21:19 GMT 5        IGMP: Unknown Multicast Filter disabled
I    2007-04-19 01:21:19 GMT 6        PoE Port Detection Status:  Port 1 Status: Delivering Power
I    2007-04-19 01:21:22 GMT 7        PoE Port Detection Status:  Port 35 Status: Delivering Power
I    2007-04-19 01:21:49 GMT 8        Port 0/47 reenabled by VLACP
I    2007-04-19 01:21:49 GMT 9        Port 0/48 reenabled by VLACP
I    2007-04-19 01:23:05 GMT 10       SNTP: First synchronization successful.
I    2007-04-19 01:23:18 GMT 11       Warm Start Trap
I    2007-04-19 01:23:19 GMT 12       Link Up Trap Port: 1
I    2007-04-19 01:23:20 GMT 13       Trap:  pethPsePortOnOffNotification
I    2007-04-19 01:23:20 GMT 14       Trap:  bsAdacPortConfigNotification for Port: 47, Config: Applied

Q. How can I check the state of a port?
A. show interfaces

ERS-5520# show interfaces 47,48
Status                     Auto                      Flow
Port Trunk Admin   Oper Link LinkTrap Negotiation Speed    Duplex Control
---- ----- ------- ---- ---- -------- ----------- -------- ------ -------
47   1     Enable  Up   Up   Enabled  Enabled     1000Mbps Full   Asymm
48   1     Enable  Up   Up   Enabled  Enabled     1000Mbps Full   Asymm

Q. How can I check the VLACP state of a port?
A. show vlacp interface

ERS-5520# show vlacp interface 47,48
===============================================================================
VLACP Information
===============================================================================
PORT ADMIN   OPER    HAVE    FAST  SLOW  TIMEOUT TIMEOUT ETH  MAC
ENABLED ENABLED PARTNER TIME  TIME  TYPE    SCALE   TYPE ADDRESS
-------------------------------------------------------------------------------
0/47  true    true    yes    500   30000 short   3       8103 01:80:c2:00:11:00
0/48  true    true    yes    500   30000 short   3       8103 01:80:c2:00:11:00

Q. How can I check what FDB entries have been learned on a specific port?
A. show mac-address-table port

ERS-5520# show mac-address-table port 47
Mac Address Table Aging Time: 300
Number of addresses: 9

MAC Address      Source          MAC Address      Source
-----------------  --------      -----------------  --------
00-00-5E-00-01-01  Trunk: 1      00-15-40-45-68-00  Trunk: 1
00-17-D1-57-30-00  Trunk: 1      00-17-D1-57-30-10  Trunk: 1
00-17-D1-57-32-03  Trunk: 1      00-18-B0-CC-F0-00  Trunk: 1
00-18-B0-CC-F0-10  Trunk: 1      00-18-B0-CC-F2-01  Trunk: 1
00-1B-25-4C-74-00  Trunk: 1

Q. How can I check the FDB table for a specific MAC address?
A. show mac-address-table address

ERS-5520# show mac-address-table address 00:18:b0:cc:f0:10
Mac Address Table Aging Time: 300
Number of addresses: 1

MAC Address      Source          MAC Address      Source
-----------------  --------      -----------------  --------
00-18-B0-CC-F0-10  Trunk: 1

Q. How can I check to see if ADAC has been configured/enabled?
A. show adac

ERS-5520# show adac
ADAC Global Configuration
---------------------------------------
ADAC:  Enabled
Operating Mode:  Tagged Frames
Traps Control Status:  Enabled
Voice-VLAN ID:  12
Call Server Port:  None
Uplink Port:  48

Q. How can I check to see if ADAC has been applied to a specific port?
A. show adac interface

ERS-5520# show adac interface 20
Port  Auto-Detection  Auto-Configuration
----  --------------  ------------------
20       Enabled            Applied

Q. How can I check to see the LLDP information with a specific port?
A. show lldp port neighbor detail

ERS-5520# show lldp port 20 neighbor detail
-------------------------------------------------------------------------------
 lldp neighbor
-------------------------------------------------------------------------------
 Port: 20    Index: 5                  Time: 8 days, 13:47:49
 ChassisId: Network address    ipV4  192.168.100.101
 PortId:    MAC address        00:17:65:ff:e0:fc
 SysCap:    TB / TB            (Supported/Enabled)
 PortDesc:  Nortel IP Phone
 SysDescr:  Nortel IP Telephone 2002, Firmware:0604DAS

 PVID: 0                              PPVID Supported: not supported(0)
 VLAN Name List: none                 PPVID Enabled: none

 Dot3-MAC/PHY Auto-neg: supported/enabled       OperMAUtype:  100BaseTXFD
 PSE MDI power:         not supported/disabled  Port class:   PD
 PSE power pair:        signal/not controllable Power class:  2
 LinkAggr: not aggregatable/not aggregated      AggrPortID:   0
 MaxFrameSize: 1522
 PMD auto-neg:          10Base(T, TFD), 100Base(TX, TXFD)

 MED-Capabilities: CNLDI / CNDI       (Supported/Current)
 MED-Device type:  Endpoint Class 3
 MED-Application Type: Voice                    VLAN ID: 12
 L2 Priority: 6         DSCP Value: 46          Tagged Vlan, Policy defined
 Med-Power Type: PD Device            Power Source: Unknown
 Power Priority: High                 Power Value:    5.4 Watt
 HWRev:                               FWRev: 0604DAS
 SWRev:                               SerialNumber:
 ManufName: Nortel-01                 ModelName: IP Phone 2002
 AssetID:
-------------------------------------------------------------------------------
Port: 20    Index: 6                  Time: 8 days, 13:48:20
 ChassisId: Network address    ipV4  10.119.241.50
 PortId:    MAC address        00:17:65:ff:e0:fc
 SysCap:    TB / TB            (Supported/Enabled)
 PortDesc:  Nortel IP Phone
 SysDescr:  Nortel IP Telephone 2002, Firmware:0604DAS

 PVID: 0                              PPVID Supported: not supported(0)
 VLAN Name List: 12                   PPVID Enabled: none

 Dot3-MAC/PHY Auto-neg: supported/enabled       OperMAUtype:  100BaseTXFD
 PSE MDI power:         not supported/disabled  Port class:   PD
 PSE power pair:        signal/not controllable Power class:  2
 LinkAggr: not aggregatable/not aggregated      AggrPortID:   0
 MaxFrameSize: 1522
 PMD auto-neg:          10Base(T, TFD), 100Base(TX, TXFD)

 MED-Capabilities: CNLDI / CNDI       (Supported/Current)
 MED-Device type:  Endpoint Class 3
 MED-Application Type: Voice                    VLAN ID: 12
 L2 Priority: 6         DSCP Value: 46          Tagged Vlan, Policy defined
 Med-Power Type: PD Device            Power Source: Unknown
 Power Priority: High                 Power Value:    5.4 Watt
 HWRev:                               FWRev: 0604DAS
 SWRev:                               SerialNumber:
 ManufName: Nortel-01                 ModelName: IP Phone 2002
 AssetID:
-------------------------------------------------------------------------------
Sys capability: O-Other; R-Repeater; B-Bridge; W-WLAN accesspoint; r-Router;
T-Telephone; D-DOCSIS cable device; S-Station only.
Med Capabilities-C: N-Network Policy; L-Location Identification; I-Inventory;
S-Extended Power via MDI - PSE; D-Extended Power via MDI - PD.

Those are some of the commands that you might have to execute if you needed to perform troubleshooting between an ERS5520 and a i2002/i2004 phone.

Your DHCP server logs will be your friend during your troubleshooting. If you don’t see the phone making a DHCP request (or a request in the proper VLAN) then you should check that ADAC was applied to the switch port. ADAC is the component that will automatically add the switch port (the switch port the phone is connected to) into the Voice VLAN. If ADAC is not applied (or enabled) on the port then you’ll be able to see that the switch port in question is only a member of the Data VLAN. You need to remember that ADAC works on MAC address ranges. You need to check that the MAC address of your phone is in the ADAC MAC address table.

5520-48T-PWR# show adac mac-range-table
Lowest MAC Address          Highest MAC Address
------------------------    -------------------------
00-0A-E4-01-10-20            00-0A-E4-01-23-A7
00-0A-E4-01-70-EC            00-0A-E4-01-84-73
00-0A-E4-01-A1-C8            00-0A-E4-01-AD-7F
00-0A-E4-01-DA-4E            00-0A-E4-01-ED-D5
00-0A-E4-02-1E-D4            00-0A-E4-02-32-5B
00-0A-E4-02-5D-22            00-0A-E4-02-70-A9
00-0A-E4-02-D8-AE            00-0A-E4-02-FF-BD
00-0A-E4-03-87-E4            00-0A-E4-03-89-0F
00-0A-E4-03-90-E0            00-0A-E4-03-B7-EF
00-0A-E4-04-1A-56            00-0A-E4-04-41-65
00-0A-E4-04-80-E8            00-0A-E4-04-A7-F7
00-0A-E4-04-D2-FC            00-0A-E4-05-48-2B
00-0A-E4-05-B7-DF            00-0A-E4-06-05-FE
00-0A-E4-06-55-EC            00-0A-E4-07-19-3B
00-0A-E4-08-0A-02            00-0A-E4-08-7F-31
00-0A-E4-08-B2-89            00-0A-E4-09-75-D8
00-0A-E4-09-BB-9D            00-0A-E4-09-CF-24
00-0A-E4-09-FC-2B            00-0A-E4-0A-71-5A
00-0A-E4-0A-9D-DA            00-0A-E4-0B-61-29
00-0A-E4-0B-BB-FC            00-0A-E4-0B-BC-0F
00-0A-E4-0B-D9-BE            00-0A-E4-0C-9D-0D

Total Ranges: 21

If the MAC address of your i2002/i2004 phone does not match any of the MAC address ranges in the switch you’ll need to add a range to include those MAC addresses. If the MAC address of your i2002 phone was 00:18:b0:11:22:33 you could use the following commands;

5520-48T-PWR> enable
5520-48T-PWR# config terminal
5520-48T-PWR (config)# adac mac-range-table low-end 00:18:b0:00:00:00 high-end 00:18:b0:ff:ff:ff

You might think you could configure a port mirror and run a quick packet capture to understand what’s going on… unfortunately you cannot configure any port with port mirroring that has ADAC enabled.

Thats all for now.

The last step is the DHCP server so stay tuned.

Nortel ERS 5520 PwR Switch

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[ad name=”ad-articlebodysq”]Update: July 30, 2009
I’ve added a command to disable the User Interface Button (UI Button) “no ui-button enable”.

Update: February 7, 2009
It was time to update this article with some additional information and settings that I’m now using in all my switch deployments. The big change is the updated ADAC MAC address table. Please also note the VLACP time-out scale change and I’ve updated the year field for the Daylight Saving Time change.

Update: August 13, 2008
This was one of the first articles I wrote back in October 2007 and it is by far the most popular article out of all 110 articles that I currently have published. With that said I decided to come back and spruce up this post with some additional “tweaks” that I’ve added over the past 10 months. I’m also going to attack a link to a text file so folks can just download the file of commands, tweak the specific individual settings such as IP address and VLAN information, and then cut and paste into the CLI interface of the Nortel Ethernet Routing Switch 5520. It will hopefully save folks from having to cut and paste each section.

Note: just a quick warning about cutting and pasting into the CLI interface, I’ve often found that the buffer will overflow if I try to paste an entire configuration at once. I usually need to break it into at least two or three sections and cut and paste those section one at a time.

In this post I’ll try to outline how you can configure the Nortel Ethernet Routing Switch 5520 in a VoIP environment using Nortel i2002/i2004 Internet Telephones (this procedure will also work the same with the i2007/1120E/1140E phones).

You’ll obviously need a ERS 5520 switch and you’ll need SW 5.0.6.22 or later and FW 5.0.0.3 or later (there are known issues with earlier software versions that create inconsistent results using LLDP with the i2002/i2004 phones). I would strongly advise that you start with a default configuration. From the CLI issue the following commands to reset the switch to factory defaults;

5520-48T-PWR> enable
5520-48T-PWR# boot default

The switch should reboot with a default configuration. Let’s proceed with the configuration;

5520-48T-PWR> enable
5520-48T-PWR# configure terminal

Let’s set the local read-only and read-write passwords;

5520-48T-PWR (config)#cli password read-only readpass
5520-48T-PWR (config)#cli password read-write writepass
5520-48T-PWR (config)#cli password serial local
5520-48T-PWR (config)#cli password telnet local

Let’s disable the user interface button (UI button);

5520-48T-PWR (config)# no ui-button enable

Enable AUTOPVID;

5520-48T-PWR (config)# vlan configcontrol autopvid

We’ll be up linking this switch using a MultiLink trunk on ports 47 and 48 so we’ll enable tagging on the fiber uplinks;

5520-48T-PWR (config)# vlan ports 47,48 tagging enable

Let’s create the data VLAN (VID 100) and management VLAN (VID 200) on the switch;

5520-48T-PWR (config)# vlan members remove 1 ALL
5520-48T-PWR (config)# vlan create 200 name "10-1-200-0/24" type port
5520-48T-PWR (config)# vlan members add 200 47,48
5520-48T-PWR (config)# vlan create 100 name "10-1-100-0/24" type port
5520-48T-PWR (config)# vlan members add 100 1-48
5520-48T-PWR (config)# vlan port 1-46 pvid 100
5520-48T-PWR (config)# vlan port 47,48 pvid 200

Let’s make VLAN 200 the management VLAN and assign the IP address;

5520-48T-PWR (config)# vlan mgmt 200
5520-48T-PWR (config)# ip address switch 10.1.200.10 netmask 255.255.255.0 default-gateway 10.1.200.1

Let’s setup Simple Network Management Protocol (SNMP);

5520-48T-PWR (config)# snmp-server authentication-trap disable
5520-48T-PWR (config)# snmp-server community  ro
5520-48T-PWR (config)# snmp-server community  rw
5520-48T-PWR (config)# snmp-server host

Let’s configure the logging so it will overwrite the oldest events;

5520-48T-PWR (config)# logging volatile overwrite
5520-48T-PWR (config)# logging enable

Let’s setup Simple Network Time Protocol (SNTP);

5520-48T-PWR (config)# sntp server primary address
5520-48T-PWR (config)# sntp server secondary address
5520-48T-PWR (config)# sntp enable

Depending on the version of switch software your running you may be able to configure Daylight Saving Time;

5520-48T-PWR (config)#clock time-zone EST -5
5520-48T-PWR (config)#clock summer-time EDT date 9 Mar 2009 2:00 2 Nov 2009 2:00 +60

Let’s setup the MultiLink trunk that will connect the switch back to the backbone;

5520-48T-PWR (config)# mlt 1 disable
5520-48T-PWR (config)# mlt 1 name "MLT-8600"
5520-48T-PWR (config)# mlt 1 learning disable
5520-48T-PWR (config)# mlt 1 member 47,48
5520-48T-PWR (config)# mlt 1 enable

Let’s setup ADAC (Automatic Detection and Automatic Configuration) for our i2002/i2004 phones. We’ll using VLAN 50 as our voice VLAN and we’ll use port 48 as our uplink (the switch will add 47 automatically because of the MLT configuration). There is a new command to clear the ADAC MAC address table that may be missing from earlier versions, “no adac mac-range-table”. I’ve also updated the list of entries that I use.

5520-48T-PWR (config)# adac voice-vlan 50
5520-48T-PWR (config)# adac op-mode tagged-frames
5520-48T-PWR (config)# adac uplink-port 48
5520-48T-PWR (config)# no adac mac-range-table
5520-48T-PWR (config)# adac mac-range-table low-end 00:0a:e4:75:00:00 high-end 00:0a:e4:75:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:13:65:00:00:00 high-end 00:13:65:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:14:c2:00:00:00 high-end 00:14:c2:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:16:ca:00:00:00 high-end 00:16:ca:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:17:65:00:00:00 high-end 00:17:65:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:18:b0:00:00:00 high-end 00:18:b0:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:19:69:00:00:00 high-end 00:19:69:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:19:e1:00:00:00 high-end 00:19:e1:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:1b:ba:00:00:00 high-end 00:1b:ba:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:1e:ca:00:00:00 high-end 00:1e:ca:ff:ff:ff
5520-48T-PWR (config)# adac mac-range-table low-end 00:22:67:00:00:00 high-end 00:22:67:ff:ff:ff
5520-48T-PWR (config)# adac enable

We need to strip the 802.1q tag from any packets in the PVID VLAN from going to the phone. In this design we’re expecting to connect IP phones to ports 1 – 46.

5520-48T-PWR (config)# vlan port 1-46 tagging untagpvidOnly

Let’s configure LLDP for the ports we expect to connect IP phones (1 – 46);

5520-48T-PWR (config)# interface fastEthernet 1-46
5520-48T-PWR (config-if)# vlan ports 1-46 filter-unregistered-frames disable
5520-48T-PWR (config-if)# lldp tx-tlv port-desc sys-cap sys-desc sys-name
5520-48T-PWR (config-if)# lldp status txAndRx config-notification
5520-48T-PWR (config-if)# lldp tx-tlv med extendedPSE med-capabilities network-policy
5520-48T-PWR (config-if)# poe poe-priority high
5520-48T-PWR (config-if)# spanning-tree learning fast
5520-48T-PWR (config-if)# adac enable
5520-48T-PWR (config-if)# exit

The option in RED above was added after an issue was discovered when trying to upgrade the firmware on the IP phones. The filter-unregistered-frames is enabled by default and should be disabled to avoid and issues with upgrading the firmware on the IP phones. We are attempting to investigate further with Nortel and our voice vendor Shared Technologies.

Let’s disable the two remaining ports that share the GBIC interfaces incase we need those in the future;

5520-48T-PWR (config)# interface fastEthernet 45-46
5520-48T-PWR (config-if)# shutdown
5520-48T-PWR (config-if)# exit

Let’s setup a QoS interface group to trust all traffic that will ingress on the fiber uplinks. By default the ERS 5520 switch will strip all QoS tags on all ports. Thankfully ADAC will take care of the QoS settings for all VoIP traffic.

5520-48T-PWR (config)# qos if-group name allUpLinks class trusted
5520-48T-PWR (config)# interface fastEthernet 47,48
5520-48T-PWR (config)# qos if-assign port 47,48 name allUpLinks
5520-48T-PWR (config)# exit

Let’s set the SNMP information;

5520-48T-PWR (config)# snmp-server name "sw-icr1-1east.sub.domain.org"
5520-48T-PWR (config)# snmp-server location "Acme Internet Phone Company (ICR1)"
5520-48T-PWR (config)# snmp-server contact "Network Infrastructure Team"

Let’s enable rate limiting for all broadcast and multicast traffic to 10% of the link;

5520-48T-PWR (config)# interface fastEthernet ALL
5520-48T-PWR (config-if)# rate-limit both 5
5520-48T-PWR (config-if)# exit

Let’s setup VLACP (Virtual Link Aggregation Protocol) on the uplinks to the core;

5520-48T-PWR (config)# interface fastEthernet 47,48
5520-48T-PWR (config-if)# vlacp port 47,48 timeout short
5520-48T-PWR (config-if)# vlacp port 47,48 timeout-scale 5
5520-48T-PWR (config-if)# vlacp port 47,48 enable
5520-48T-PWR (config-if)# exit
5520-48T-PWR (config)# vlacp enable

That’s it your done! Well hopefully your done.

In my next post I’ll tell you what DHCP options you’ll need to configure on your DHCP server in order for the phones to boot properly and connect to the Nortel Call Server.

Cheers!

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