But in case your router/firewall stops working, having two or more WAN connections is not going to help you much. In times when each minute of network disruption can cost the company thousands of dollars, serious businesses tend to have redundant internet links. We will also go through configuration examples. We will compare two of the best solutions – VRRP (Virtual Router Redundancy Protocol) and HA using FGCP (FortiGate Cluster Protocol), outlining the pros and cons for each. In this article, we will discuss the importance of HA (High Availability) solutions for your FortiGate firewall(s). this register only increments in internal SerDes mode.Fortinet FortiGate HA (High Availability) Solutions The count increases for every bad symbol received, whether or not a packet is currently being received and whether or not the link is up. SYMERRS - Counts the number of symbol errors between reads. This error is only valid in 10/100M mode. This counter does not increment for streaming transmits that are deferred due to TX IPG. This register only increments if transmits are enabled. A defer event occurs when the transmitter cannot immediately send a packet due to the medium being busy either because another device is transmitting, the IPG timer has not expired, half-duplex deferral events, reception of XOFF frames, or the link is not up. The value only increments if transmits are enabled and the Ethernet controller is in half-duplex mode.Ĭounts defer events. Multiple Collision Count, counts the number of times that a transmit encountered more than one collision but less than 16. The value only increments if transmits are enabled and the Ethernet controller is in half-duplex mode. This register is not valid in internal SerDes1 mode (TBI mode for the 82544GC/EI), and is only valid when the Ethernet controller is operating at full duplex.Ĭounts the number of times that a successfully transmitted packet encountered a single collision. Failure to do so may indicate that the link has failed, or the PHY has an incorrect link configuration. The PHY should assert the internal carrier sense signal during every transmission. Same as Rx_Missed_Errors missed packet count.ĮCOL - Excessive Collisions Count. Total number of collisions experienced by the transmitter. This register only increments if transmits are enabled and the device is in half-duplex mode. Late collisions are collisions that occur after 64-byte time into the transmission of the packet while working in 10-100 Mb/s data rate, and 512 byte time into the transmission of the packet while working in the 1000 Mb/s data rate. Only valid in 1000M mode, which is marked by PHY.ĮCOL, Excessive Collisions Count. A newer error is rx_no_buffer_count.Įquals Rx_FIFO_Errors + CEXTERR (Carrier Extension Error Count). Typically, they are caused by either faulty cabling, or as the result of a collision Rx_CRC_Errors + Rx_Length_Errors + Rx_Align_Errorsįrame CRC errors can be caused by a number of factors. # diag hardware deviceinfo nic interface. The counters and their meaning describe what can be seen when using the CLI command: The output of the diagnose command may vary depending on the interface driver This article provides a description of interface error counters.
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