Brocade Network Advisor SAN + IP User Manual v12.3.0 - Manual (Page 1605)

Brocade Network Advisor SAN + IP User Manual 1533
53-1003155-01
802.1ag Connectivity Fault Management
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8. Enter the number of hops to allow before dropping the packet in the Time to Live (TTL) field.
The time to live value is decremented by each router that forwards the message. The message
is dropped if the time to live reaches zero. The time to live value can be from 1 through 64
hops.
9. Click Execute to send the linktrace message.
The details of the hop display in the Hop Details table.
10. Review the hop details:
- The Hop Details table lists the connectivity status for each remote MEP and MIP.
- The hop number.
- The MAC address of the remote MEP/MIP.
- Whether the MEP or MIP forwarded the message.
- The ingress or egress MEP and MIP.
• For a linktrace on a VLAN service, displays the associated port name in the format of
Slot_Number/Port_Number.
• For a linktrace on a VLL or VPLS, displays the IPv4 address of the peer product.
- The ingress or egress action, based on the MEP or MIP direction:
• If direction is DOWN, displays Ingress OK.
• If direction is UP, displays Egress OK.
- Relay Action
• If the linktrace message is forwarded, displays FDB.
• If the linktrace message reaches the MEP or MIP, displays HIT.
11. Click Close on the 802.1ag CFM Linktrace dialog box.
12. Click Close on the Configure 802.1ag CFM dialog box.
Configuring frame delay
You can access 802.1ag CFM from the following features:
• VPLS Manager (requires the IP - MPLS – VLL prvilege with read-write or read-only permission)
• VLL Manager (requires the IP - MPLS – VPLS prvilege with read-write or read-only permission)
• VLAN Manager (requires the VLAN Manager prvilege with read-write or read-only permission)
NOTE
802.1ag CFM Frame Delay is only supported on IronWare Ethernet Routers devices running
firmware release 5.4 or later.
NOTE
You cannot configure an 802.1ag CFM on a maintenance end point (MEP) configured with dual
tagged VLANs.
Use frame delay to identify fault locations by sending a query between maintenance end points
(MEP) along the service path of the domain.
To determine frame delay between two MEPs, complete the following steps.