Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 585 of 669
Problem
:
MEP not working over link aggregation.
Meaning
: Protocols above the LAG layer don’t seem to consider the LAG group as a logical port (e.g.,
SOAM over an aggregated link). A MEP does not view the LAG group as a logical port; for example, if
you:
1. Create an EVC with all LAG groups’ ports in NNI.
2. Create a LAG group.
3. Create MEPs on the EVC (e.g., EVPL) service on UNI and NNI ports. Note that since a MEP has a
residence port attached to it even though it’s an EVC MEP, this creates issue when the residence port is
down and CCMs are to be carried over the other ports. This creates faults on the MEP, possibly because
of the MAC address being used in the CCMs.
Recovery
: This is a deployment issue.
1. Use MEP on EVC instead; this is orthogonal to any aggregation. For a service running over an
aggregation, just add all port to the NNI.
Problem
:
DNS not updated when new DHCP address is granted
Meaning
: When a new address is granted a device via a DHCP operation, the "A" and "PTR" records in
DNS must be corrected to point at the new address. The Client (3280) should drive that by sending
"Option 81" in with the DHCP request response. This doesn't appear to be happening on the 3280 as a
ping to the DNS name will fail. The ‘A’ record maps a host name to an IP address and the ‘PTR’ record
creates a pointer to the host for reverse lookups.
Recovery
: FQDN option 81 refers to the Fully Qualified Domain Name (FQDN) Dynamic Host
Configuration Protocol (DHCP) option (81). See Microsoft TechNet article # bb727018 at
http://technet.microsoft.com/en-us/library/bb727018.aspx
Message
:
Connection received from 192.168.1.110 on port 7700 [04/01 12:36:07.613]
Read request for file <S4224-master.dat>. Mode OCTET [04/01 12:36:07.613]
Using local port 3505 [04/01 12:36:07.613]
<S4224-master.dat>: sent 6956 blks, 3561330 bytes in 4 s. 0 blk resent [04/01 12:36:11.081]
Meaning
: Standard messages received from TFTPd32 Log Viewer tab.
Recovery
: None; information only. Tftpd32 is an open source IPv6 ready application with free DHCP,
TFTP, DNS, SNTP and Syslog servers, and a TFTP client. The TFTP client and server are compatible
with TFTP option support (e.g., tsize, blocksize, and timeout). Some extended features (e.g., directory
facility, security tuning, interface filtering; progress bars and early acknowledgments) enhance the TFTP
protocol usability and transfer rate for both client and server. The included DHCP server provides
unlimited automatic or static IP address assignment.Tftpd32 is also provided as a Windows service.
Tftpd64 is the same application compiled as a 64 bits application. See the TFTFd32 FAQ at
http://tftpd32.jounin.net/tftpd32_faq.html#static_DHCP_english
