How to read SNMP traffic counters for Juniper EX4200?

How to read SNMP traffic counters for Juniper EX4200?

I have multiple q-in-q S-VLANs assigned to the trunk port ge-0/0/0. How can I read SNMP traffic counters for a specific VLAN id (S-VLAN) on that trunk port? Hardware is Juniper EX4200-24F. For reference, the VLAN configuration is shown below.

When to use Q-in-Q tunneling in 802.1Q?

Using Q-in-Q tunneling, providers can also segregate or bundle customer traffic into fewer VLANs or different VLANs by adding another layer of 802.1Q tags. Q-in-Q tunneling is useful when customers have overlapping VLAN IDs, because the customer’s 802.1Q (dot1Q) VLAN tags are prepended by the service VLAN (S-VLAN) tag.

How to configure VLANs for Ex series switches?

To configure communication between VLANs, you must configure an integrated routing and bridging (IRB) interface. See Configuring Integrated Routing and Bridging Interfaces on Switches (CLI Procedure). Configure the VLAN ID or a VLAN ID list for the VLAN.

Which is Junos OS supports Q-in-Q tunneling?

The Junos OS software implementation of Q-in-Q tunneling supports the IEEE 802.1ad standard. The following example outlines a Q-in-Q topology and configuration.

What does implicit Discard do on juniper firewall?

Implicit discard is also applicable to a firewall filter applied to the loopback interface, lo0. On Juniper Networks EX8200 Ethernet Switches, if an implicit or explicit discard action is configured on a loopback interface for IPv4 traffic, next hop resolve packets are accepted and allowed to pass through the switch.

How to configure a VLAN firewall filter in terminal?

To quickly configure and apply a VLAN firewall filter, copy the following commands and paste them into the switch terminal window:

How to configure firewall filters on EX series switches?

You configure firewall filters on EX Series switches to control traffic that enters ports on the switch or enters and exits VLANs on the network and Layer 3 (routed) interfaces. To configure a firewall filter you must configure the filter and then apply it to a port, VLAN, or Layer 3 interface.

What is SNMP index number for Juniper Networks Physical Interface?

SNMP index number for the physical interface. Unique number for use by Juniper Networks technical support only. Because this is routed VLAN interface information, this entry is always VLAN. Encapsulation (added control information) being used on the physical interface.

How to enable SNMP on devices running Junos OS?

To enable SNMP on devices running Junos OS, include the community public statement at the [edit snmp] hierarchy level. A community that is defined as public grants access to all MIB data to any client.

How does Junos determine if a SNMP request is a duplicate?

The Junos OS uses the following information to determine if an SNMP request is a duplicate: By default, filtering of duplicate SNMP requests is disabled on devices running the Junos OS. An interface that is slow in responding to SNMP requests for interface statistics can delay kernel responses to SNMP requests.