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How to troubleshoot an interface in Juniper Networks?
Loopback diagnostic test is successful but unable to transmit and receive packets on the Ethernet interface. Run the show interfaces interface-name terse operational command to check if the physical interface and logical interfaces are administratively disabled. For example, on ge-5/0/1 interface.
Can a MX Series router support tunnel services?
The MX Series routers support Dense Port Concentrators (DPCs) with built-in Ethernet ports, which do not support Tunnel Services PICs. To create tunnel interfaces on an MX Series router with a DPC, you configure the DPC and the corresponding Packet Forwarding Engine to use for tunneling services at the [edit chassis] hierarchy level.
How does logical tunnel interface work in Junos?
Establish connectivity (by using dynamic routing protocols) between the two hosts that are in two different routing-instances via a logical connection. In addition to sharing routes between instances, you can also form logical or physical connections between instances on the same Junos device and route between the connected instances.
Do you need physical interface for logical tunnel interface?
To enable the logical tunnel interface, you must configure at least one physical interface statement. In addition to logical tunnel interfaces, you can also use physical interfaces to connect and route between routing instances. This implementation method typically requires two physical ports, one for each instance.
What does L3 incomplete mean in Juniper network?
L3 incompletes: Number of incoming packets discarded, as they have failed Layer 3 sanity checks for the headers. For example, a frame with less than 20 bytes of available IP header is discarded. L2 channel errors: Number of times the software did not find a valid logical interface for an incoming frame.
What do drops and aborts mean in Juniper Networks?
If the number of carrier transitions increments quickly (perhaps once every 10 seconds), the cable, far-end system, PIC (Physical Interface Cards) or PIM (Physical Interface Module) is malfunctioning. Errors: Sum of the outgoing frame aborts and FCS errors. Drops: The number of packets which are dropped by the output queue of the I/O Manager ASIC.
What does carrier transition mean in Juniper network?
Carrier transitions: Number of times that the interface has gone from down to up. This number does not normally increment quickly; increasing only when the cable is unplugged, the far-end system is powered down and then up, or another issue occurs.