Cisco WS-C4500X-16 Switch Monitoring Help

[LukeAB93UK]

Hello,

I am attempting to use SNMP to monitor the following interfaces on a Cisco WS-C4500X-16 Switch.

The interfaces are as follows.

Gi4/0/32
Gi4/0/36
Gi5/0/1
Gi6/0/33
Gi6/0/36
Po2
Te8/0/1
Te1/0/1

However if I run an SNMP Walk using the IFName OID the only one of those interfaces that shows is Po2. All those interfaces are live and operation at the moment.

Here is the full SNMP Walk Output.

snmpwalk -v2c -c <SommunityString> <IP Address> 1.3.6.1.2.1.31.1.1.1.1
IF-MIB::ifName.1 = STRING: Fa1
IF-MIB::ifName.2 = STRING: Te1/1/1
IF-MIB::ifName.3 = STRING: Te1/1/2
IF-MIB::ifName.4 = STRING: Te1/1/3
IF-MIB::ifName.5 = STRING: Te1/1/4
IF-MIB::ifName.6 = STRING: Te1/1/5
IF-MIB::ifName.7 = STRING: Te1/1/6
IF-MIB::ifName.8 = STRING: Te1/1/7
IF-MIB::ifName.9 = STRING: Te1/1/8
IF-MIB::ifName.10 = STRING: Te1/1/9
IF-MIB::ifName.11 = STRING: Te1/1/10
IF-MIB::ifName.12 = STRING: Te1/1/11
IF-MIB::ifName.13 = STRING: Te1/1/12
IF-MIB::ifName.14 = STRING: Te1/1/13
IF-MIB::ifName.15 = STRING: Te1/1/14
IF-MIB::ifName.16 = STRING: Te1/1/15
IF-MIB::ifName.17 = STRING: Te1/1/16
IF-MIB::ifName.18 = STRING: Te2/1/1
IF-MIB::ifName.19 = STRING: Te2/1/2
IF-MIB::ifName.20 = STRING: Te2/1/3
IF-MIB::ifName.21 = STRING: Te2/1/4
IF-MIB::ifName.22 = STRING: Te2/1/5
IF-MIB::ifName.23 = STRING: Te2/1/6
IF-MIB::ifName.24 = STRING: Te2/1/7
IF-MIB::ifName.25 = STRING: Te2/1/8
IF-MIB::ifName.26 = STRING: Te2/1/9
IF-MIB::ifName.27 = STRING: Te2/1/10
IF-MIB::ifName.28 = STRING: Te2/1/11
IF-MIB::ifName.29 = STRING: Te2/1/12
IF-MIB::ifName.30 = STRING: Te2/1/13
IF-MIB::ifName.31 = STRING: Te2/1/14
IF-MIB::ifName.32 = STRING: Te2/1/15
IF-MIB::ifName.33 = STRING: Te2/1/16
IF-MIB::ifName.34 = STRING: Nu0
IF-MIB::ifName.35 = STRING: Vl1
IF-MIB::ifName.36 = STRING: VLAN-1
IF-MIB::ifName.37 = STRING: VLAN-1002
IF-MIB::ifName.38 = STRING: VLAN-1004
IF-MIB::ifName.39 = STRING: VLAN-1005
IF-MIB::ifName.40 = STRING: VLAN-1003
IF-MIB::ifName.41 = STRING: Lo0
IF-MIB::ifName.42 = STRING: Po1
IF-MIB::ifName.43 = STRING: Po2
IF-MIB::ifName.44 = STRING: Po3
IF-MIB::ifName.45 = STRING: Po4
IF-MIB::ifName.46 = STRING: Po23
IF-MIB::ifName.47 = STRING: Po24
IF-MIB::ifName.48 = STRING: Po25
IF-MIB::ifName.49 = STRING: Po63
IF-MIB::ifName.50 = STRING: Po64
IF-MIB::ifName.51 = STRING: Po100
IF-MIB::ifName.52 = STRING: Po200
IF-MIB::ifName.53 = STRING: Te1/1/13--Uncontrolled
IF-MIB::ifName.54 = STRING: Te1/1/13--Controlled
IF-MIB::ifName.55 = STRING: Te1/1/14--Uncontrolled
IF-MIB::ifName.56 = STRING: Te1/1/14--Controlled
IF-MIB::ifName.57 = STRING: Te2/1/13--Uncontrolled
IF-MIB::ifName.58 = STRING: Te2/1/13--Controlled
IF-MIB::ifName.59 = STRING: Te2/1/14--Uncontrolled
IF-MIB::ifName.60 = STRING: Te2/1/14--Controlled
IF-MIB::ifName.61 = STRING: Vl4
IF-MIB::ifName.62 = STRING: Vl5
IF-MIB::ifName.63 = STRING: Vl6
IF-MIB::ifName.64 = STRING: Vl7
IF-MIB::ifName.65 = STRING: Vl8
IF-MIB::ifName.66 = STRING: Vl9
IF-MIB::ifName.67 = STRING: Vl10
IF-MIB::ifName.68 = STRING: Vl11
IF-MIB::ifName.69 = STRING: Vl12
IF-MIB::ifName.70 = STRING: Vl24
IF-MIB::ifName.71 = STRING: Vl51
IF-MIB::ifName.72 = STRING: Vl52
IF-MIB::ifName.73 = STRING: Vl100
IF-MIB::ifName.74 = STRING: Vl101
IF-MIB::ifName.75 = STRING: Vl102
IF-MIB::ifName.76 = STRING: Vl210
IF-MIB::ifName.77 = STRING: Vl220
IF-MIB::ifName.78 = STRING: Vl4000
IF-MIB::ifName.79 = STRING: Vl4040
IF-MIB::ifName.80 = STRING: VLAN-4
IF-MIB::ifName.81 = STRING: VLAN-5
IF-MIB::ifName.82 = STRING: VLAN-6
IF-MIB::ifName.83 = STRING: VLAN-7
IF-MIB::ifName.84 = STRING: VLAN-8
IF-MIB::ifName.85 = STRING: VLAN-9
IF-MIB::ifName.86 = STRING: VLAN-10
IF-MIB::ifName.87 = STRING: VLAN-11
IF-MIB::ifName.88 = STRING: VLAN-12
IF-MIB::ifName.89 = STRING: VLAN-24
IF-MIB::ifName.90 = STRING: VLAN-51
IF-MIB::ifName.91 = STRING: VLAN-52
IF-MIB::ifName.92 = STRING: VLAN-100
IF-MIB::ifName.93 = STRING: VLAN-101
IF-MIB::ifName.94 = STRING: VLAN-102
IF-MIB::ifName.95 = STRING: VLAN-210
IF-MIB::ifName.96 = STRING: VLAN-220
IF-MIB::ifName.97 = STRING: VLAN-230
IF-MIB::ifName.98 = STRING: VLAN-3000
IF-MIB::ifName.99 = STRING: VLAN-3001
IF-MIB::ifName.100 = STRING: VLAN-3002
IF-MIB::ifName.101 = STRING: VLAN-3003
IF-MIB::ifName.102 = STRING: VLAN-4000
IF-MIB::ifName.103 = STRING: VLAN-4040
IF-MIB::ifName.104 = STRING: Te1/1/1--Uncontrolled
IF-MIB::ifName.105 = STRING: Te1/1/1--Controlled
IF-MIB::ifName.106 = STRING: Te1/1/2--Uncontrolled
IF-MIB::ifName.107 = STRING: Te1/1/2--Controlled
IF-MIB::ifName.108 = STRING: Te1/1/3--Uncontrolled
IF-MIB::ifName.109 = STRING: Te1/1/3--Controlled
IF-MIB::ifName.110 = STRING: Te1/1/4--Uncontrolled
IF-MIB::ifName.111 = STRING: Te1/1/4--Controlled
IF-MIB::ifName.112 = STRING: Te1/1/5--Uncontrolled
IF-MIB::ifName.113 = STRING: Te1/1/5--Controlled
IF-MIB::ifName.114 = STRING: Te1/1/6--Uncontrolled
IF-MIB::ifName.115 = STRING: Te1/1/6--Controlled
IF-MIB::ifName.116 = STRING: Te1/1/7--Uncontrolled
IF-MIB::ifName.117 = STRING: Te1/1/7--Controlled
IF-MIB::ifName.118 = STRING: Te1/1/8--Uncontrolled
IF-MIB::ifName.119 = STRING: Te1/1/8--Controlled
IF-MIB::ifName.120 = STRING: Te1/1/9--Uncontrolled
IF-MIB::ifName.121 = STRING: Te1/1/9--Controlled
IF-MIB::ifName.122 = STRING: Te1/1/10--Uncontrolled
IF-MIB::ifName.123 = STRING: Te1/1/10--Controlled
IF-MIB::ifName.124 = STRING: Te1/1/11--Uncontrolled
IF-MIB::ifName.125 = STRING: Te1/1/11--Controlled
IF-MIB::ifName.126 = STRING: Te1/1/12--Uncontrolled
IF-MIB::ifName.127 = STRING: Te1/1/12--Controlled
IF-MIB::ifName.128 = STRING: Te1/1/15--Uncontrolled
IF-MIB::ifName.129 = STRING: Te1/1/15--Controlled
IF-MIB::ifName.130 = STRING: Te1/1/16--Uncontrolled
IF-MIB::ifName.131 = STRING: Te1/1/16--Controlled
IF-MIB::ifName.132 = STRING: Te2/1/1--Uncontrolled
IF-MIB::ifName.133 = STRING: Te2/1/1--Controlled
IF-MIB::ifName.134 = STRING: Te2/1/2--Uncontrolled
IF-MIB::ifName.135 = STRING: Te2/1/2--Controlled
IF-MIB::ifName.136 = STRING: Te2/1/3--Uncontrolled
IF-MIB::ifName.137 = STRING: Te2/1/3--Controlled
IF-MIB::ifName.138 = STRING: Te2/1/4--Uncontrolled
IF-MIB::ifName.139 = STRING: Te2/1/4--Controlled
IF-MIB::ifName.140 = STRING: Te2/1/5--Uncontrolled
IF-MIB::ifName.141 = STRING: Te2/1/5--Controlled
IF-MIB::ifName.142 = STRING: Te2/1/6--Uncontrolled
IF-MIB::ifName.143 = STRING: Te2/1/6--Controlled
IF-MIB::ifName.144 = STRING: Te2/1/7--Uncontrolled
IF-MIB::ifName.145 = STRING: Te2/1/7--Controlled
IF-MIB::ifName.146 = STRING: Te2/1/8--Uncontrolled
IF-MIB::ifName.147 = STRING: Te2/1/8--Controlled
IF-MIB::ifName.148 = STRING: Te2/1/9--Uncontrolled
IF-MIB::ifName.149 = STRING: Te2/1/9--Controlled
IF-MIB::ifName.150 = STRING: Te2/1/10--Uncontrolled
IF-MIB::ifName.151 = STRING: Te2/1/10--Controlled
IF-MIB::ifName.152 = STRING: Te2/1/11--Uncontrolled
IF-MIB::ifName.153 = STRING: Te2/1/11--Controlled
IF-MIB::ifName.154 = STRING: Te2/1/12--Uncontrolled
IF-MIB::ifName.155 = STRING: Te2/1/12--Controlled
IF-MIB::ifName.156 = STRING: Te2/1/15--Uncontrolled
IF-MIB::ifName.157 = STRING: Te2/1/15--Controlled
IF-MIB::ifName.158 = STRING: Te2/1/16--Uncontrolled
IF-MIB::ifName.159 = STRING: Te2/1/16--Controlled​

Does anyone have any idea on why they may not be showing. If I run the Operational Status MIB I only get the 159 interfaces too. We would like to be able to monitor the Operational Status of those ports if possible.

Thank you for your assistance.

Kind Regards

[LukeAB93UK]

Hello, Sorry to bump the topic. I am just wondering if anyone has any experience with Cisco switches and why ports may be missing from the MIB. Any help would be appreciated.

[Vermizz]

Hello,
Cisco WS-C4500X-16 Switch according to the specification, it has 16 sfp ports which can be seen on yours SNMP Walk Output.
Where do you see these additional ports? What does the "show interface" command on the switch show?

[LukeAB93UK]

Hello,
Cisco WS-C4500X-16 Switch according to the specification, it has 16 sfp ports which can be seen on yours SNMP Walk Output.
Where do you see these additional ports? What does the "show interface" command on the switch show?

Hello, so following on from your advice I asked one of our Network Specialists to give me a full list of the interfaces on the switch and they dont show up there. I do not have access to the switches directly I only handle our monitoring solution but it appears whatever those interfaces are they can not be monitored via SNMP.

Thank you for your assistance.

[kaspars.mednis]

Hello, Luke.

It seems these are virtual interfaces, which you can easily filter out by using interface type (ifType) OID = 1.3.6.1.2.1.2.2.1.3

Most likely the interface type will be one of these values for the Controlled | Uncontrolled interfaces:

macSecUncontrolledIF(232)
macSecControlledIF(231)

Most Ethernet interfaces have interface type

ethernet-csmacd(6)

By adding additional filter to the LLD rule you should be able to remove these virtual interfaces from your Zabbix monitoring.

Good luck,
Kaspars