TP-Link T2600G Series User Manual

Configuring OAM Ethernet OAM
User Guide
977
Remote Failure Indication (RFI)
With Remote Failure Indication, an OAM entity can send the failure conditions of the link,
such as disruption in traffic because of the device failure, to its peer through Information
OAMPDUs. This allows the network administrator to stay informed of the link faults and
take action quickly. The switch supports two kinds of failure conditions:
Dying Gasp: An unrecoverable fault, such as power failure, occurs.
Critical Event: Unspecified critical event occurs.
Remote Loopback
With Remote Loopback, administrators can test link performance including the delay, jitter,
and frame loss rate during installation or troubleshooting.
Figure 1-2 Remote Loopback
(1) Loopback Control OAMPDU
(3) Non-OAMPDUs from A to B
(5) Loopback Control OAMPDU
(2) Information OAMPDU
(4) Non-OAMPDUs back from B to A
(6) Information OAMPDU
Switch A Switch B
Gi 1/0/1
(Active mode)
Gi 1/0/1
(Passive mode)
As the above figure shows, the OAM connection has been established between the two
entities. The OAM entity on Switch A is in active mode, and that on Switch B is in passive
mode.
The working mechanism of Remote Loopback is as follows:
1) Switch A sends a Loopback Control OAMPDU to put the peer into remote loopback
mode. Note that at least one of the two entities should be configured in active mode
because only the entity in active mode can generate Loopback Control OAMPDU.
2) After receiving the Loopback Control OAMPDU, Switch B turns into remote loopback
mode and sends an Information OAMPDU to inform its state updating.
3) Switch A sends Non-OAMPDU packets to Switch B for link testing.
4) Switch B receives the testing packets and sends back these packets along the original
path. Through these returned packets, administrators can test the link performance.

TP-Link T2600G Series Specifications

General

Model	T2600G Series
Layer	Layer 2+
Type	Managed
Uplink Ports	4 x Gigabit SFP slots
VLAN	4K VLANs
QoS	8 priority queues
Management	Web-based GUI, CLI, SNMP, RMON
Standards and Protocols	IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3ad, IEEE 802.3x, IEEE 802.1d, IEEE 802.1s, IEEE 802.1w, IEEE 802.1q, IEEE 802.1p, IEEE 802.3af, IEEE 802.3at
Interface	RJ45
L2 Features	STP, RSTP, MSTP, LACP, IGMP Snooping
L3 Features	Static Routing
Security	802.1X, Port Security, DHCP Snooping, IP Source Guard, DoS Defend, ARP Inspection, SSH, SSL, ACL
MAC Address Table	16K
Jumbo Frame	9KB
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
Operating Humidity	10% to 90% RH non-condensing
Storage Humidity	5% to 90% non-condensing