Cisco Cisco Aironet 1310 Access Point Bridge Information Guide
of the BGN. You can verify the BGN of an AP with this command:
show ap config general Cisco AP
Q. What happens if the BGN is not configured correctly?
A. If the AP is wrongly provisioned with a bridgegroupname other than the one for which it is
intended, dependent upon the network design, this AP can or cannot be able to reach out and
find its correct sector or tree. If it cannot reach a compatible sector, it can become stranded. In
order to recover such a stranded AP, the concept of default bridgegroupname has been
introduced. The basic idea is that an AP, which is unable to connect to any other AP with its
configured bridgegroupname, attempts to connect with the bridgegroupname of default.
intended, dependent upon the network design, this AP can or cannot be able to reach out and
find its correct sector or tree. If it cannot reach a compatible sector, it can become stranded. In
order to recover such a stranded AP, the concept of default bridgegroupname has been
introduced. The basic idea is that an AP, which is unable to connect to any other AP with its
configured bridgegroupname, attempts to connect with the bridgegroupname of default.
This is the algorithm used to detect this strand condition and recovery:
Passively scan and find all neighbor nodes, regardless of their bridgegroupname.
1.
The AP attempts to connect to the neighbors that are heard with their own
bridgegroupname with Adaptive Wireless Path Protocol (AWPP).
bridgegroupname with Adaptive Wireless Path Protocol (AWPP).
2.
If Step 2 fails, attempt to connect with the default bridgegroupname with AWPP.
3.
For each failed attempt of Step 3, exclusion−list the neighbor and attempt to connect
the next best neighbor.
the next best neighbor.
4.
If the AP fails to connect with all neighbors in Step 4, reboot the AP.
5.
If connected with default bridgegroupname for 30 minutes, re−scan all channels and
attempt to connect with the correct bridgegroupname.
attempt to connect with the correct bridgegroupname.
6.
Note: When an AP is able to connect with the default bridgegroupname, the parent node
reports the AP as a default child/node/neighbor entry on the WLAN controller so that a
network administrator is aware of the stranded AP. Such an AP cannot accept any client or
other mesh nodes as its children, nor can it pass any data traffic through.
reports the AP as a default child/node/neighbor entry on the WLAN controller so that a
network administrator is aware of the stranded AP. Such an AP cannot accept any client or
other mesh nodes as its children, nor can it pass any data traffic through.
Q. Can a LAP 1030 bridge to any other bridge models? Also can a LAP
1020 support bridging?
1020 support bridging?
A. The LAP 1020 model does not support bridging. The LAP 1030 supports bridging (one
hop) to another LAP 1030 but not to a BR1310, BR1400, or LAP 1500 at this time.
hop) to another LAP 1030 but not to a BR1310, BR1400, or LAP 1500 at this time.
Q. Is it possible to set up wireless bridging between LAP APs? I would
like one radio on my non−wired LAPs to perform bridging back to the
wired root bridge LAPs (LAP connected to a WLC). Is this possible?
like one radio on my non−wired LAPs to perform bridging back to the
wired root bridge LAPs (LAP connected to a WLC). Is this possible?
A. No. This cannot be done on LAP APs. Mesh APs can perform basic point−to−point
bridging in a Cisco Unified Wireless Network. The only other bridging possible is through
IOS APs in WGB (Workgroup Bridge) mode. These IOS APs act as clients (with wired
devices behind them) to a LAP AP. But wireless clients cannot connect to these IOS APs.
bridging in a Cisco Unified Wireless Network. The only other bridging possible is through
IOS APs in WGB (Workgroup Bridge) mode. These IOS APs act as clients (with wired
devices behind them) to a LAP AP. But wireless clients cannot connect to these IOS APs.
Q. I have a LAP 1131, and this access point is successfully registered to
the Wireless LAN Controllers. When I connect the access point without
the power injector, the radios are up (LED status is green), but when I
connect the AP with the power injector, the radios are down (LED status
is orange). How I can resolve this issue?
the Wireless LAN Controllers. When I connect the access point without
the power injector, the radios are up (LED status is green), but when I
connect the AP with the power injector, the radios are down (LED status
is orange). How I can resolve this issue?
A. This issue can be due to incorrectly configured Power over Ethernet (POE) parameters;