Dynamic Mac Aging - Siemens SCALANCE XM-400 Configuration Manual

● Dest. IP
Shows the IPv4 address of the recipient.
● Dest. Subnet Mask
Shows the subnet mask of the recipient.
● Ingress Interfaces
Shows all interfaces to which this rule applies. The ACL filter decides which incoming data
streams are mirrored on the monitor port (destination port).
● Egress Interfaces
Shows all interfaces to which this rule applies.
5.5.8

Dynamic MAC Aging

Protocol settings and switch functionality
The device automatically learns the source addresses of the connected nodes. This
information is used to forward data frames to the nodes specifically involved. This reduces the
network load for the other nodes.
If a device does not receive a frame whose source address matches a learnt address within
a certain time, it deletes the learnt address. This mechanism is known as "Aging". Aging
prevents frames being forwarded incorrectly, for example when an end device is connected
to a different switch port.
If the check box is not enabled, a device does not delete learnt addresses automatically.
Description of the displayed boxes
The page contains the following boxes:
● Dynamic MAC Aging
Enable or disable the function for automatic aging of learned MAC addresses.
● Aging Time[s]
Enter the time in seconds. After this time, a learned address is deleted if the device does
not receive any further frames from this sender address.
Range of values: 10 - 630 (seconds)
SCALANCE XM-400/XR-500 Web Based Management (WBM)
Configuration Manual, 05/2017, C79000-G8976-C248-12
Configuring with Web Based Management
5.5 The "Layer 2" menu
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