Washington, D.C. 20549
                                    FORM 8-K

                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934
       Date of Report (Date of earliest event reported): December 15, 2004

                          Concord Communications, Inc.
               (Exact name of registrant as specified in charter)
      Massachusetts                    0-23067                   04-2710876
      -------------                    -------                   ----------
(State or other jurisdiction   (Commission File Number)       (IRS Employer
     of incorporation)                                       Identification No.)
400 Nickerson Road, Marlboro, Massachusetts                         01752
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 (Address of principal executive offices)                        (Zip Code)


       Registrant's telephone number, including area code: (508) 460-4646
                                 Not Applicable
          (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):
|_|  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)
|_|  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
|_|  Pre-commencement communications pursuant to Rule 14d-2(b) under Exchange
     Act (17 CFR 240.14d-2(b))

|_|  Pre-commencement communications pursuant to Rule 13e-4(c) under Exchange
     Act (17 CFR 240.13e-4(c))

Item 7.01. Regulation FD Disclosure.

     On December 15, 2004, Concord Communications, Inc. issued a press release
announcing that it has signed a definitive agreement to acquire privately-held
Vitel Software, Incorporated, a Massachusetts corporation. The purchase price is
equal to $4 million in cash plus the assumption of debt and is expected to close
in January 2005. A copy of the press release is attached hereto as Exhibit 99.1
and is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

     (c)  Exhibits.

          Exhibit Number                  Description
          --------------                  -----------
              99.1                        Press release dated December 15, 2004.

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.
                              CONCORD COMMUNICATIONS, INC.
                              By: /s/ Melissa H. Cruz
Date: December 15, 2004           Melissa H. Cruz
                                  Executive Vice President of Business Services,
                                  Chief Financial Officer and Treasurer